java监测服务器信息(cpu,内存,运行时间等),springboot监控服务器信息
java 获取系统的内存,CPU,存储状态等
·
目录
1.添加工程依赖
<!-- 父工程中-->
<properties>
<oshi.version>5.8.2</oshi.version>
</properties>
<!-- 获取系统信息 -->
<dependency>
<groupId>com.github.oshi</groupId>
<artifactId>oshi-core</artifactId>
<version>${oshi.version}</version>
</dependency>
<!-- 子工程中-->
<!-- 获取系统信息 -->
<dependency>
<groupId>com.github.oshi</groupId>
<artifactId>oshi-core</artifactId>
</dependency>
2. 依赖工具类
代码在最后边。(或者直接下载:下载地址)
目录结构展示:
- domain
- ServerInfo.java
- model
- Cpu.java
- Jvm.java
- Mem.java
- Sys.java
- SysFile.java
- utils
- Arith.java
- Convert.java
- DateUtils.java
- EscapeUtil.java
- HTMLFilter.java
- IpUtils.java
- StrFormatter.java
- ServerStringUtils.java
3. 使用
@PostMapping("cc")
public Result cc() throws Exception {
ServerInfo info = new ServerInfo();
info.copyInfo();
return new Result(info);
}
PS:工具类代码
model
Cpu.java
package com.sq.common.domain.model;
import com.sq.common.domain.utils.Arith;
/**
* CPU相关信息
*/
public class Cpu {
/**
* 核心数
*/
private int cpuNum;
/**
* CPU总的使用率
*/
private double total;
/**
* CPU系统使用率
*/
private double sys;
/**
* CPU用户使用率
*/
private double used;
/**
* CPU当前等待率
*/
private double wait;
/**
* CPU当前空闲率
*/
private double free;
public int getCpuNum() { return cpuNum; }
public void setCpuNum(int cpuNum) { this.cpuNum = cpuNum; }
public double getTotal() { return Arith.round(Arith.mul(total, 100), 2); }
public void setTotal(double total) { this.total = total; }
public double getSys() { return Arith.round(Arith.mul(sys / total, 100), 2); }
public void setSys(double sys) { this.sys = sys; }
public double getUsed() { return Arith.round(Arith.mul(used / total, 100), 2); }
public void setUsed(double used) { this.used = used; }
public double getWait() { return Arith.round(Arith.mul(wait / total, 100), 2); }
public void setWait(double wait) { this.wait = wait; }
public double getFree() { return Arith.round(Arith.mul(free / total, 100), 2); }
public void setFree(double free) { this.free = free; }
}
Jvm.java
package com.sq.common.domain.model;
import com.sq.common.domain.utils.Arith;
import com.sq.common.domain.utils.DateUtils;
import java.lang.management.ManagementFactory;
/**
* JVM相关信息
*/
public class Jvm {
/**
* 当前JVM占用的内存总数(M)
*/
private double total;
/**
* JVM最大可用内存总数(M)
*/
private double max;
/**
* JVM空闲内存(M)
*/
private double free;
/**
* JDK版本
*/
private String version;
/**
* JDK路径
*/
private String home;
public double getTotal() { return Arith.div(total, (1024 * 1024), 2); }
public void setTotal(double total) { this.total = total; }
public double getMax() { return Arith.div(max, (1024 * 1024), 2); }
public void setMax(double max) { this.max = max; }
public double getFree() { return Arith.div(free, (1024 * 1024), 2); }
public void setFree(double free) { this.free = free; }
public double getUsed() { return Arith.div(total - free, (1024 * 1024), 2); }
public double getUsage() { return Arith.mul(Arith.div(total - free, total, 4), 100); }
/**
* 获取JDK名称
*/
public String getName() { return ManagementFactory.getRuntimeMXBean().getVmName(); }
public String getVersion() {
return version;
}
public void setVersion(String version) { this.version = version; }
public String getHome() { return home; }
public void setHome(String home) { this.home = home; }
/**
* JDK启动时间
*/
public String getStartTime() { return DateUtils.parseDateToStr(DateUtils.YYYY_MM_DD_HH_MM_SS, DateUtils.getServerStartDate()); }
/**
* JDK运行时间
*/
public String getRunTime() { return DateUtils.getDatePoor(DateUtils.getNowDate(), DateUtils.getServerStartDate()); }
}
Mem.java
package com.sq.common.domain.model;
import com.sq.common.domain.utils.Arith;
/**
* 內存相关信息
*/
public class Mem {
/**
* 内存总量
*/
private double total;
/**
* 已用内存
*/
private double used;
/**
* 剩余内存
*/
private double free;
public double getTotal() { return Arith.div(total, (1024 * 1024 * 1024), 2); }
public void setTotal(long total) { this.total = total; }
public double getUsed() { return Arith.div(used, (1024 * 1024 * 1024), 2); }
public void setUsed(long used) { this.used = used; }
public double getFree() { return Arith.div(free, (1024 * 1024 * 1024), 2); }
public void setFree(long free) { this.free = free; }
public double getUsage() { return Arith.mul(Arith.div(used, total, 4), 100); }
}
Sys.java
package com.sq.common.domain.model;
/**
* 系统相关信息
*/
public class Sys {
/**
* 服务器名称
*/
private String computerName;
/**
* 服务器Ip
*/
private String computerIp;
/**
* 项目路径
*/
private String userDir;
/**
* 操作系统
*/
private String osName;
/**
* 系统架构
*/
private String osArch;
public String getComputerName() { return computerName; }
public void setComputerName(String computerName) { this.computerName = computerName; }
public String getComputerIp() { return computerIp; }
public void setComputerIp(String computerIp) { this.computerIp = computerIp; }
public String getUserDir() { return userDir; }
public void setUserDir(String userDir) { this.userDir = userDir; }
public String getOsName() { return osName; }
public void setOsName(String osName) { this.osName = osName; }
public String getOsArch() { return osArch; }
public void setOsArch(String osArch) { this.osArch = osArch; }
}
SysFile.java
package com.sq.common.domain.model;
/**
* 系统文件相关信息
*/
public class SysFile {
/**
* 盘符路径
*/
private String dirName;
/**
* 盘符类型
*/
private String sysTypeName;
/**
* 文件类型
*/
private String typeName;
/**
* 总大小
*/
private String total;
/**
* 剩余大小
*/
private String free;
/**
* 已经使用量
*/
private String used;
/**
* 资源的使用率
*/
private double usage;
public String getDirName() { return dirName; }
public void setDirName(String dirName) { this.dirName = dirName; }
public String getSysTypeName() { return sysTypeName; }
public void setSysTypeName(String sysTypeName) { this.sysTypeName = sysTypeName; }
public String getTypeName() { return typeName; }
public void setTypeName(String typeName) { this.typeName = typeName; }
public String getTotal() { return total; }
public void setTotal(String total) { this.total = total; }
public String getFree() { return free; }
public void setFree(String free) { this.free = free; }
public String getUsed() { return used; }
public void setUsed(String used) { this.used = used; }
public double getUsage() { return usage; }
public void setUsage(double usage) { this.usage = usage; }
}
utils
Arith.java
package com.sq.common.domain.utils;
import java.math.BigDecimal;
import java.math.RoundingMode;
/**
* 精确的浮点数运算
*/
public class Arith {
/**
* 默认除法运算精度
*/
private static final int DEF_DIV_SCALE = 10;
/**
* 这个类不能实例化
*/
private Arith() {
}
/**
* 提供精确的加法运算。
*
* @param v1 被加数
* @param v2 加数
* @return 两个参数的和
*/
public static double add(double v1, double v2) {
BigDecimal b1 = new BigDecimal(Double.toString(v1));
BigDecimal b2 = new BigDecimal(Double.toString(v2));
return b1.add(b2).doubleValue();
}
/**
* 提供精确的减法运算。
*
* @param v1 被减数
* @param v2 减数
* @return 两个参数的差
*/
public static double sub(double v1, double v2) {
BigDecimal b1 = new BigDecimal(Double.toString(v1));
BigDecimal b2 = new BigDecimal(Double.toString(v2));
return b1.subtract(b2).doubleValue();
}
/**
* 提供精确的乘法运算。
*
* @param v1 被乘数
* @param v2 乘数
* @return 两个参数的积
*/
public static double mul(double v1, double v2) {
BigDecimal b1 = new BigDecimal(Double.toString(v1));
BigDecimal b2 = new BigDecimal(Double.toString(v2));
return b1.multiply(b2).doubleValue();
}
/**
* 提供(相对)精确的除法运算,当发生除不尽的情况时,精确到
* 小数点以后10位,以后的数字四舍五入。
*
* @param v1 被除数
* @param v2 除数
* @return 两个参数的商
*/
public static double div(double v1, double v2) {
return div(v1, v2, DEF_DIV_SCALE);
}
/**
* 提供(相对)精确的除法运算。当发生除不尽的情况时,由scale参数指
* 定精度,以后的数字四舍五入。
*
* @param v1 被除数
* @param v2 除数
* @param scale 表示表示需要精确到小数点以后几位。
* @return 两个参数的商
*/
public static double div(double v1, double v2, int scale) {
if (scale < 0) {
throw new IllegalArgumentException(
"The scale must be a positive integer or zero");
}
BigDecimal b1 = new BigDecimal(Double.toString(v1));
BigDecimal b2 = new BigDecimal(Double.toString(v2));
if (b1.compareTo(BigDecimal.ZERO) == 0) {
return BigDecimal.ZERO.doubleValue();
}
return b1.divide(b2, scale, RoundingMode.HALF_UP).doubleValue();
}
/**
* 提供精确的小数位四舍五入处理。
*
* @param v 需要四舍五入的数字
* @param scale 小数点后保留几位
* @return 四舍五入后的结果
*/
public static double round(double v, int scale) {
if (scale < 0) {
throw new IllegalArgumentException(
"The scale must be a positive integer or zero");
}
BigDecimal b = new BigDecimal(Double.toString(v));
BigDecimal one = BigDecimal.ONE;
return b.divide(one, scale, RoundingMode.HALF_UP).doubleValue();
}
}
Convert.java
package com.sq.common.domain.utils;
import org.apache.commons.lang3.ArrayUtils;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
/**
* 类型转换器
*/
public class Convert {
/**
* 将对象转为字符串<br>
*/
public static String utf8Str(Object obj) {
return str(obj, StandardCharsets.UTF_8);
}
/**
* 将对象转为字符串<br>
*/
public static String str(Object obj, Charset charset) {
if (null == obj) {
return null;
}
if (obj instanceof String) {
return (String) obj;
} else if (obj instanceof byte[]) {
return str((byte[]) obj, charset);
} else if (obj instanceof Byte[]) {
byte[] bytes = ArrayUtils.toPrimitive((Byte[]) obj);
return str(bytes, charset);
} else if (obj instanceof ByteBuffer) {
return str((ByteBuffer) obj, charset);
}
return obj.toString();
}
/**
* 解码字节码
*/
public static String str(byte[] data, Charset charset) {
if (data == null) {
return null;
}
if (null == charset) {
return new String(data);
}
return new String(data, charset);
}
/**
* 将编码的byteBuffer数据转换为字符串
*/
public static String str(ByteBuffer data, Charset charset) {
if (null == charset) {
charset = Charset.defaultCharset();
}
return charset.decode(data).toString();
}
}
DateUtils.java
package com.sq.common.domain.utils;
import java.lang.management.ManagementFactory;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* 时间工具类
*/
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
public static String YYYY_MM_DD = "yyyy-MM-dd";
public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
/**
* 获取当前Date型日期
*/
public static Date getNowDate() {
return new Date();
}
/**
* 获取当前日期, 默认格式为yyyy-MM-dd
*/
public static String getDate() {
return dateTimeNow(YYYY_MM_DD);
}
public static final String getTime() {
return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
}
public static final String dateTimeNow(final String format) {
return parseDateToStr(format, new Date());
}
public static final String parseDateToStr(final String format, final Date date) {
return new SimpleDateFormat(format).format(date);
}
/**
* 获取服务器启动时间
*/
public static Date getServerStartDate() {
long time = ManagementFactory.getRuntimeMXBean().getStartTime();
return new Date(time);
}
/**
* 计算两个时间差
*/
public static String getDatePoor(Date endDate, Date nowDate) {
long nd = 1000 * 24 * 60 * 60;
long nh = 1000 * 60 * 60;
long nm = 1000 * 60;
// long ns = 1000;
// 获得两个时间的毫秒时间差异
long diff = endDate.getTime() - nowDate.getTime();
// 计算差多少天
long day = diff / nd;
// 计算差多少小时
long hour = diff % nd / nh;
// 计算差多少分钟
long min = diff % nd % nh / nm;
// 计算差多少秒//输出结果
// long sec = diff % nd % nh % nm / ns;
return day + "天" + hour + "小时" + min + "分钟";
}
}
EscapeUtil.java
package com.sq.common.domain.utils;
/**
* 转义和反转义工具类
*/
public class EscapeUtil {
private static final char[][] TEXT = new char[64][];
static {
for (int i = 0; i < 64; i++) {
TEXT[i] = new char[]{(char) i};
}
// special HTML characters
TEXT['\''] = "'".toCharArray(); // 单引号
TEXT['"'] = """.toCharArray(); // 双引号
TEXT['&'] = "&".toCharArray(); // &符
TEXT['<'] = "<".toCharArray(); // 小于号
TEXT['>'] = ">".toCharArray(); // 大于号
}
/**
* 转义文本中的HTML字符为安全的字符
*
* @param text 被转义的文本
* @return 转义后的文本
*/
public static String escape(String text) {
return encode(text);
}
/**
* 还原被转义的HTML特殊字符
*
* @param content 包含转义符的HTML内容
* @return 转换后的字符串
*/
public static String unescape(String content) {
return decode(content);
}
/**
* 清除所有HTML标签,但是不删除标签内的内容
*
* @param content 文本
* @return 清除标签后的文本
*/
public static String clean(String content) {
return new HTMLFilter().filter(content);
}
/**
* Escape编码
*
* @param text 被编码的文本
* @return 编码后的字符
*/
private static String encode(String text) {
if (ServerStringUtils.isEmpty(text)) {
return ServerStringUtils.EMPTY;
}
final StringBuilder tmp = new StringBuilder(text.length() * 6);
char c;
for (int i = 0; i < text.length(); i++) {
c = text.charAt(i);
if (c < 256) {
tmp.append("%");
if (c < 16) {
tmp.append("0");
}
tmp.append(Integer.toString(c, 16));
} else {
tmp.append("%u");
if (c <= 0xfff) {
// issue#I49JU8@Gitee
tmp.append("0");
}
tmp.append(Integer.toString(c, 16));
}
}
return tmp.toString();
}
/**
* Escape解码
*
* @param content 被转义的内容
* @return 解码后的字符串
*/
public static String decode(String content) {
if (ServerStringUtils.isEmpty(content)) {
return content;
}
StringBuilder tmp = new StringBuilder(content.length());
int lastPos = 0, pos = 0;
char ch;
while (lastPos < content.length()) {
pos = content.indexOf("%", lastPos);
if (pos == lastPos) {
if (content.charAt(pos + 1) == 'u') {
ch = (char) Integer.parseInt(content.substring(pos + 2, pos + 6), 16);
tmp.append(ch);
lastPos = pos + 6;
} else {
ch = (char) Integer.parseInt(content.substring(pos + 1, pos + 3), 16);
tmp.append(ch);
lastPos = pos + 3;
}
} else {
if (pos == -1) {
tmp.append(content.substring(lastPos));
lastPos = content.length();
} else {
tmp.append(content.substring(lastPos, pos));
lastPos = pos;
}
}
}
return tmp.toString();
}
}
HtmlFilter.java
package com.sq.common.domain.utils;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* HTML过滤器,用于去除XSS漏洞隐患。
*/
public final class HTMLFilter {
/**
* regex flag union representing /si modifiers in php
**/
private static final int REGEX_FLAGS_SI = Pattern.CASE_INSENSITIVE | Pattern.DOTALL;
private static final Pattern P_COMMENTS = Pattern.compile("<!--(.*?)-->", Pattern.DOTALL);
private static final Pattern P_COMMENT = Pattern.compile("^!--(.*)--$", REGEX_FLAGS_SI);
private static final Pattern P_TAGS = Pattern.compile("<(.*?)>", Pattern.DOTALL);
private static final Pattern P_END_TAG = Pattern.compile("^/([a-z0-9]+)", REGEX_FLAGS_SI);
private static final Pattern P_START_TAG = Pattern.compile("^([a-z0-9]+)(.*?)(/?)$", REGEX_FLAGS_SI);
private static final Pattern P_QUOTED_ATTRIBUTES = Pattern.compile("([a-z0-9]+)=([\"'])(.*?)\\2", REGEX_FLAGS_SI);
private static final Pattern P_UNQUOTED_ATTRIBUTES = Pattern.compile("([a-z0-9]+)(=)([^\"\\s']+)", REGEX_FLAGS_SI);
private static final Pattern P_PROTOCOL = Pattern.compile("^([^:]+):", REGEX_FLAGS_SI);
private static final Pattern P_ENTITY = Pattern.compile("&#(\\d+);?");
private static final Pattern P_ENTITY_UNICODE = Pattern.compile("&#x([0-9a-f]+);?");
private static final Pattern P_ENCODE = Pattern.compile("%([0-9a-f]{2});?");
private static final Pattern P_VALID_ENTITIES = Pattern.compile("&([^&;]*)(?=(;|&|$))");
private static final Pattern P_VALID_QUOTES = Pattern.compile("(>|^)([^<]+?)(<|$)", Pattern.DOTALL);
private static final Pattern P_END_ARROW = Pattern.compile("^>");
private static final Pattern P_BODY_TO_END = Pattern.compile("<([^>]*?)(?=<|$)");
private static final Pattern P_XML_CONTENT = Pattern.compile("(^|>)([^<]*?)(?=>)");
private static final Pattern P_STRAY_LEFT_ARROW = Pattern.compile("<([^>]*?)(?=<|$)");
private static final Pattern P_STRAY_RIGHT_ARROW = Pattern.compile("(^|>)([^<]*?)(?=>)");
private static final Pattern P_AMP = Pattern.compile("&");
private static final Pattern P_QUOTE = Pattern.compile("\"");
private static final Pattern P_LEFT_ARROW = Pattern.compile("<");
private static final Pattern P_RIGHT_ARROW = Pattern.compile(">");
private static final Pattern P_BOTH_ARROWS = Pattern.compile("<>");
private static final ConcurrentMap<String, Pattern> P_REMOVE_PAIR_BLANKS = new ConcurrentHashMap<>();
private static final ConcurrentMap<String, Pattern> P_REMOVE_SELF_BLANKS = new ConcurrentHashMap<>();
/**
* set of allowed html elements, along with allowed attributes for each element
**/
private final Map<String, List<String>> vAllowed;
/**
* counts of open tags for each (allowable) html element
**/
private final Map<String, Integer> vTagCounts = new HashMap<>();
/**
* html elements which must always be self-closing (e.g. "<img />")
**/
private final String[] vSelfClosingTags;
/**
* html elements which must always have separate opening and closing tags (e.g. "<b></b>")
**/
private final String[] vNeedClosingTags;
/**
* set of disallowed html elements
**/
private final String[] vDisallowed;
/**
* attributes which should be checked for valid protocols
**/
private final String[] vProtocolAtts;
/**
* allowed protocols
**/
private final String[] vAllowedProtocols;
/**
* tags which should be removed if they contain no content (e.g. "<b></b>" or "<b />")
**/
private final String[] vRemoveBlanks;
/**
* entities allowed within html markup
**/
private final String[] vAllowedEntities;
/**
* flag determining whether comments are allowed in input String.
*/
private final boolean stripComment;
private final boolean encodeQuotes;
/**
* flag determining whether to try to make tags when presented with "unbalanced" angle brackets (e.g. "<b text </b>"
* becomes "<b> text </b>"). If set to false, unbalanced angle brackets will be html escaped.
*/
private final boolean alwaysMakeTags;
/**
* Default constructor.
*/
public HTMLFilter() {
vAllowed = new HashMap<>();
final ArrayList<String> a_atts = new ArrayList<>();
a_atts.add("href");
a_atts.add("target");
vAllowed.put("a", a_atts);
final ArrayList<String> img_atts = new ArrayList<>();
img_atts.add("src");
img_atts.add("width");
img_atts.add("height");
img_atts.add("alt");
vAllowed.put("img", img_atts);
final ArrayList<String> no_atts = new ArrayList<>();
vAllowed.put("b", no_atts);
vAllowed.put("strong", no_atts);
vAllowed.put("i", no_atts);
vAllowed.put("em", no_atts);
vSelfClosingTags = new String[]{"img"};
vNeedClosingTags = new String[]{"a", "b", "strong", "i", "em"};
vDisallowed = new String[]{};
vAllowedProtocols = new String[]{"http", "mailto", "https"}; // no ftp.
vProtocolAtts = new String[]{"src", "href"};
vRemoveBlanks = new String[]{"a", "b", "strong", "i", "em"};
vAllowedEntities = new String[]{"amp", "gt", "lt", "quot"};
stripComment = true;
encodeQuotes = true;
alwaysMakeTags = false;
}
private void reset() {
vTagCounts.clear();
}
public static String chr(final int decimal) {
return String.valueOf((char) decimal);
}
public static String htmlSpecialChars(final String s) {
String result = s;
result = regexReplace(P_AMP, "&", result);
result = regexReplace(P_QUOTE, """, result);
result = regexReplace(P_LEFT_ARROW, "<", result);
result = regexReplace(P_RIGHT_ARROW, ">", result);
return result;
}
public String filter(final String input) {
reset();
String s = input;
s = escapeComments(s);
s = balanceHTML(s);
s = checkTags(s);
s = processRemoveBlanks(s);
// s = validateEntities(s);
return s;
}
private String escapeComments(final String s) {
final Matcher m = P_COMMENTS.matcher(s);
final StringBuffer buf = new StringBuffer();
if (m.find()) {
final String match = m.group(1); // (.*?)
m.appendReplacement(buf, Matcher.quoteReplacement("<!--" + htmlSpecialChars(match) + "-->"));
}
m.appendTail(buf);
return buf.toString();
}
private String balanceHTML(String s) {
if (alwaysMakeTags) {
s = regexReplace(P_END_ARROW, "", s);
// 不追加结束标签
s = regexReplace(P_BODY_TO_END, "<$1>", s);
s = regexReplace(P_XML_CONTENT, "$1<$2", s);
} else {
s = regexReplace(P_STRAY_LEFT_ARROW, "<$1", s);
s = regexReplace(P_STRAY_RIGHT_ARROW, "$1$2><", s);
s = regexReplace(P_BOTH_ARROWS, "", s);
}
return s;
}
private String checkTags(String s) {
Matcher m = P_TAGS.matcher(s);
final StringBuffer buf = new StringBuffer();
while (m.find()) {
String replaceStr = m.group(1);
replaceStr = processTag(replaceStr);
m.appendReplacement(buf, Matcher.quoteReplacement(replaceStr));
}
m.appendTail(buf);
final StringBuilder sBuilder = new StringBuilder(buf.toString());
for (String key : vTagCounts.keySet()) {
for (int ii = 0; ii < vTagCounts.get(key); ii++) {
sBuilder.append("</").append(key).append(">");
}
}
s = sBuilder.toString();
return s;
}
private String processRemoveBlanks(final String s) {
String result = s;
for (String tag : vRemoveBlanks) {
if (!P_REMOVE_PAIR_BLANKS.containsKey(tag)) {
P_REMOVE_PAIR_BLANKS.putIfAbsent(tag, Pattern.compile("<" + tag + "(\\s[^>]*)?></" + tag + ">"));
}
result = regexReplace(P_REMOVE_PAIR_BLANKS.get(tag), "", result);
if (!P_REMOVE_SELF_BLANKS.containsKey(tag)) {
P_REMOVE_SELF_BLANKS.putIfAbsent(tag, Pattern.compile("<" + tag + "(\\s[^>]*)?/>"));
}
result = regexReplace(P_REMOVE_SELF_BLANKS.get(tag), "", result);
}
return result;
}
private static String regexReplace(final Pattern regex_pattern, final String replacement, final String s) {
Matcher m = regex_pattern.matcher(s);
return m.replaceAll(replacement);
}
private String processTag(final String s) {
// ending tags
Matcher m = P_END_TAG.matcher(s);
if (m.find()) {
final String name = m.group(1).toLowerCase();
if (allowed(name)) {
if (!inArray(name, vSelfClosingTags)) {
if (vTagCounts.containsKey(name)) {
vTagCounts.put(name, vTagCounts.get(name) - 1);
return "</" + name + ">";
}
}
}
}
m = P_START_TAG.matcher(s);
if (m.find()) {
final String name = m.group(1).toLowerCase();
final String body = m.group(2);
String ending = m.group(3);
if (allowed(name)) {
final StringBuilder params = new StringBuilder();
final Matcher m2 = P_QUOTED_ATTRIBUTES.matcher(body);
final Matcher m3 = P_UNQUOTED_ATTRIBUTES.matcher(body);
final List<String> paramNames = new ArrayList<>();
final List<String> paramValues = new ArrayList<>();
while (m2.find()) {
paramNames.add(m2.group(1)); // ([a-z0-9]+)
paramValues.add(m2.group(3)); // (.*?)
}
while (m3.find()) {
paramNames.add(m3.group(1)); // ([a-z0-9]+)
paramValues.add(m3.group(3)); // ([^\"\\s']+)
}
String paramName, paramValue;
for (int ii = 0; ii < paramNames.size(); ii++) {
paramName = paramNames.get(ii).toLowerCase();
paramValue = paramValues.get(ii);
if (allowedAttribute(name, paramName)) {
if (inArray(paramName, vProtocolAtts)) {
paramValue = processParamProtocol(paramValue);
}
params.append(' ').append(paramName).append("=\\\"").append(paramValue).append("\"");
}
}
if (inArray(name, vSelfClosingTags)) {
ending = " /";
}
if (inArray(name, vNeedClosingTags)) {
ending = "";
}
if (ending == null || ending.length() < 1) {
if (vTagCounts.containsKey(name)) {
vTagCounts.put(name, vTagCounts.get(name) + 1);
} else {
vTagCounts.put(name, 1);
}
} else {
ending = " /";
}
return "<" + name + params + ending + ">";
} else {
return "";
}
}
m = P_COMMENT.matcher(s);
if (!stripComment && m.find()) {
return "<" + m.group() + ">";
}
return "";
}
private String processParamProtocol(String s) {
s = decodeEntities(s);
final Matcher m = P_PROTOCOL.matcher(s);
if (m.find()) {
final String protocol = m.group(1);
if (!inArray(protocol, vAllowedProtocols)) {
s = "#" + s.substring(protocol.length() + 1);
if (s.startsWith("#//")) {
s = "#" + s.substring(3);
}
}
}
return s;
}
private String decodeEntities(String s) {
StringBuffer buf = new StringBuffer();
Matcher m = P_ENTITY.matcher(s);
while (m.find()) {
final String match = m.group(1);
final int decimal = Integer.decode(match).intValue();
m.appendReplacement(buf, Matcher.quoteReplacement(chr(decimal)));
}
m.appendTail(buf);
s = buf.toString();
buf = new StringBuffer();
m = P_ENTITY_UNICODE.matcher(s);
while (m.find()) {
final String match = m.group(1);
final int decimal = Integer.valueOf(match, 16).intValue();
m.appendReplacement(buf, Matcher.quoteReplacement(chr(decimal)));
}
m.appendTail(buf);
s = buf.toString();
buf = new StringBuffer();
m = P_ENCODE.matcher(s);
while (m.find()) {
final String match = m.group(1);
final int decimal = Integer.valueOf(match, 16).intValue();
m.appendReplacement(buf, Matcher.quoteReplacement(chr(decimal)));
}
m.appendTail(buf);
s = buf.toString();
s = validateEntities(s);
return s;
}
private String validateEntities(final String s) {
StringBuffer buf = new StringBuffer();
// validate entities throughout the string
Matcher m = P_VALID_ENTITIES.matcher(s);
while (m.find()) {
final String one = m.group(1); // ([^&;]*)
final String two = m.group(2); // (?=(;|&|$))
m.appendReplacement(buf, Matcher.quoteReplacement(checkEntity(one, two)));
}
m.appendTail(buf);
return encodeQuotes(buf.toString());
}
private String encodeQuotes(final String s) {
if (encodeQuotes) {
StringBuffer buf = new StringBuffer();
Matcher m = P_VALID_QUOTES.matcher(s);
while (m.find()) {
final String one = m.group(1); // (>|^)
final String two = m.group(2); // ([^<]+?)
final String three = m.group(3); // (<|$)
// 不替换双引号为",防止json格式无效 regexReplace(P_QUOTE, """, two)
m.appendReplacement(buf, Matcher.quoteReplacement(one + two + three));
}
m.appendTail(buf);
return buf.toString();
} else {
return s;
}
}
private String checkEntity(final String preamble, final String term) {
return ";".equals(term) && isValidEntity(preamble) ? '&' + preamble : "&" + preamble;
}
private boolean isValidEntity(final String entity) {
return inArray(entity, vAllowedEntities);
}
private static boolean inArray(final String s, final String[] array) {
for (String item : array) {
if (item != null && item.equals(s)) {
return true;
}
}
return false;
}
private boolean allowed(final String name) {
return (vAllowed.isEmpty() || vAllowed.containsKey(name)) && !inArray(name, vDisallowed);
}
private boolean allowedAttribute(final String name, final String paramName) {
return allowed(name) && (vAllowed.isEmpty() || vAllowed.get(name).contains(paramName));
}
}
IpUtils.java
package com.sq.common.domain.utils;
import java.net.InetAddress;
import java.net.UnknownHostException;
/**
* 获取IP方法
*/
public class IpUtils {
public static String getHostIp() {
try {
return InetAddress.getLocalHost().getHostAddress();
} catch (UnknownHostException e) {
}
return "127.0.0.1";
}
public static String getHostName() {
try {
return InetAddress.getLocalHost().getHostName();
} catch (UnknownHostException e) {
}
return "未知";
}
}
StrFormatter.java
package com.sq.common.domain.utils;
import java.util.Collection;
import java.util.Map;
/**
* 字符串工具类
*/
public class ServerStringUtils extends org.apache.commons.lang3.StringUtils {
/**
* 空字符串
*/
private static final String NULLSTR = "";
/**
* * 判断一个Collection是否为空, 包含List,Set,Queue
*/
public static boolean isEmpty(Collection<?> coll) {
return isNull(coll) || coll.isEmpty();
}
/**
* * 判断一个对象数组是否为空
*/
public static boolean isEmpty(Object[] objects) {
return isNull(objects) || (objects.length == 0);
}
/**
* * 判断一个Map是否为空
*/
public static boolean isEmpty(Map<?, ?> map) {
return isNull(map) || map.isEmpty();
}
/**
* * 判断一个字符串是否为空串
*/
public static boolean isEmpty(String str) {
return isNull(str) || NULLSTR.equals(str.trim());
}
/**
* * 判断一个对象是否为空
*/
public static boolean isNull(Object object) {
return object == null;
}
/**
* 截取字符串
*/
public static String substring(final String str, int start) {
if (str == null) {
return NULLSTR;
}
if (start < 0) {
start = str.length() + start;
}
if (start < 0) {
start = 0;
}
if (start > str.length()) {
return NULLSTR;
}
return str.substring(start);
}
/**
* 截取字符串
*/
public static String substring(final String str, int start, int end) {
if (str == null) {
return NULLSTR;
}
if (end < 0) {
end = str.length() + end;
}
if (start < 0) {
start = str.length() + start;
}
if (end > str.length()) {
end = str.length();
}
if (start > end) {
return NULLSTR;
}
if (start < 0) {
start = 0;
}
if (end < 0) {
end = 0;
}
return str.substring(start, end);
}
}
ServerStringUtils.java
package com.sq.common.domain.utils;
/**
* 字符串格式化
*/
public class StrFormatter {
public static final String EMPTY_JSON = "{}";
public static final char C_BACKSLASH = '\\';
public static final char C_DELIM_START = '{';
public static final char C_DELIM_END = '}';
/**
* 格式化字符串<br>
* 此方法只是简单将占位符 {} 按照顺序替换为参数<br>
* 如果想输出 {} 使用 \\转义 { 即可,如果想输出 {} 之前的 \ 使用双转义符 \\\\ 即可<br>
* 例:<br>
* 通常使用:format("this is {} for {}", "a", "b") -> this is a for b<br>
* 转义{}: format("this is \\{} for {}", "a", "b") -> this is \{} for a<br>
* 转义\: format("this is \\\\{} for {}", "a", "b") -> this is \a for b<br>
*
* @param strPattern 字符串模板
* @param argArray 参数列表
* @return 结果
*/
public static String format(final String strPattern, final Object... argArray) {
if (ServerStringUtils.isEmpty(strPattern) || ServerStringUtils.isEmpty(argArray)) {
return strPattern;
}
final int strPatternLength = strPattern.length();
// 初始化定义好的长度以获得更好的性能
StringBuilder sbuf = new StringBuilder(strPatternLength + 50);
int handledPosition = 0;
int delimIndex;// 占位符所在位置
for (int argIndex = 0; argIndex < argArray.length; argIndex++) {
delimIndex = strPattern.indexOf(EMPTY_JSON, handledPosition);
if (delimIndex == -1) {
if (handledPosition == 0) {
return strPattern;
} else { // 字符串模板剩余部分不再包含占位符,加入剩余部分后返回结果
sbuf.append(strPattern, handledPosition, strPatternLength);
return sbuf.toString();
}
} else {
if (delimIndex > 0 && strPattern.charAt(delimIndex - 1) == C_BACKSLASH) {
if (delimIndex > 1 && strPattern.charAt(delimIndex - 2) == C_BACKSLASH) {
// 转义符之前还有一个转义符,占位符依旧有效
sbuf.append(strPattern, handledPosition, delimIndex - 1);
sbuf.append(Convert.utf8Str(argArray[argIndex]));
handledPosition = delimIndex + 2;
} else {
// 占位符被转义
argIndex--;
sbuf.append(strPattern, handledPosition, delimIndex - 1);
sbuf.append(C_DELIM_START);
handledPosition = delimIndex + 1;
}
} else {
// 正常占位符
sbuf.append(strPattern, handledPosition, delimIndex);
sbuf.append(Convert.utf8Str(argArray[argIndex]));
handledPosition = delimIndex + 2;
}
}
}
// 加入最后一个占位符后所有的字符
sbuf.append(strPattern, handledPosition, strPattern.length());
return sbuf.toString();
}
}
ServerInfo.java
package com.sq.common.domain;
import com.sq.common.domain.model.*;
import com.sq.common.domain.utils.Arith;
import com.sq.common.domain.utils.IpUtils;
import oshi.SystemInfo;
import oshi.hardware.CentralProcessor;
import oshi.hardware.CentralProcessor.TickType;
import oshi.hardware.GlobalMemory;
import oshi.hardware.HardwareAbstractionLayer;
import oshi.software.os.FileSystem;
import oshi.software.os.OSFileStore;
import oshi.software.os.OperatingSystem;
import oshi.util.Util;
import java.net.UnknownHostException;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;
/**
* 服务器相关信息
*/
public class ServerInfo {
private static final int OSHI_WAIT_SECOND = 1000;
/**
* CPU相关信息
*/
private Cpu cpu = new Cpu();
/**
* 內存相关信息
*/
private Mem mem = new Mem();
/**
* JVM相关信息
*/
private Jvm jvm = new Jvm();
/**
* 服务器相关信息
*/
private Sys sys = new Sys();
/**
* 磁盘相关信息
*/
private List<SysFile> sysFiles = new LinkedList<SysFile>();
public Cpu getCpu() {
return cpu;
}
public void setCpu(Cpu cpu) {
this.cpu = cpu;
}
public Mem getMem() {
return mem;
}
public void setMem(Mem mem) {
this.mem = mem;
}
public Jvm getJvm() {
return jvm;
}
public void setJvm(Jvm jvm) {
this.jvm = jvm;
}
public Sys getSys() {
return sys;
}
public void setSys(Sys sys) {
this.sys = sys;
}
public List<SysFile> getSysFiles() {
return sysFiles;
}
public void setSysFiles(List<SysFile> sysFiles) {
this.sysFiles = sysFiles;
}
public void copyInfo() throws Exception {
SystemInfo si = new SystemInfo();
HardwareAbstractionLayer hal = si.getHardware();
setCpuInfo(hal.getProcessor());
setMemInfo(hal.getMemory());
setSysInfo();
setJvmInfo();
setSysFiles(si.getOperatingSystem());
}
/**
* 设置CPU信息
*/
private void setCpuInfo(CentralProcessor processor) {
// CPU信息
long[] prevTicks = processor.getSystemCpuLoadTicks();
Util.sleep(OSHI_WAIT_SECOND);
long[] ticks = processor.getSystemCpuLoadTicks();
long nice = ticks[TickType.NICE.getIndex()] - prevTicks[TickType.NICE.getIndex()];
long irq = ticks[TickType.IRQ.getIndex()] - prevTicks[TickType.IRQ.getIndex()];
long softirq = ticks[TickType.SOFTIRQ.getIndex()] - prevTicks[TickType.SOFTIRQ.getIndex()];
long steal = ticks[TickType.STEAL.getIndex()] - prevTicks[TickType.STEAL.getIndex()];
long cSys = ticks[TickType.SYSTEM.getIndex()] - prevTicks[TickType.SYSTEM.getIndex()];
long user = ticks[TickType.USER.getIndex()] - prevTicks[TickType.USER.getIndex()];
long iowait = ticks[TickType.IOWAIT.getIndex()] - prevTicks[TickType.IOWAIT.getIndex()];
long idle = ticks[TickType.IDLE.getIndex()] - prevTicks[TickType.IDLE.getIndex()];
long totalCpu = user + nice + cSys + idle + iowait + irq + softirq + steal;
cpu.setCpuNum(processor.getLogicalProcessorCount());
cpu.setTotal(totalCpu);
cpu.setSys(cSys);
cpu.setUsed(user);
cpu.setWait(iowait);
cpu.setFree(idle);
}
/**
* 设置内存信息
*/
private void setMemInfo(GlobalMemory memory) {
mem.setTotal(memory.getTotal());
mem.setUsed(memory.getTotal() - memory.getAvailable());
mem.setFree(memory.getAvailable());
}
/**
* 设置服务器信息
*/
private void setSysInfo() {
Properties props = System.getProperties();
sys.setComputerName(IpUtils.getHostName());
sys.setComputerIp(IpUtils.getHostIp());
sys.setOsName(props.getProperty("os.name"));
sys.setOsArch(props.getProperty("os.arch"));
sys.setUserDir(props.getProperty("user.dir"));
}
/**
* 设置Java虚拟机
*/
private void setJvmInfo() throws UnknownHostException {
Properties props = System.getProperties();
jvm.setTotal(Runtime.getRuntime().totalMemory());
jvm.setMax(Runtime.getRuntime().maxMemory());
jvm.setFree(Runtime.getRuntime().freeMemory());
jvm.setVersion(props.getProperty("java.version"));
jvm.setHome(props.getProperty("java.home"));
}
/**
* 设置磁盘信息
*/
private void setSysFiles(OperatingSystem os) {
FileSystem fileSystem = os.getFileSystem();
List<OSFileStore> fsArray = fileSystem.getFileStores();
for (OSFileStore fs : fsArray) {
long free = fs.getUsableSpace();
long total = fs.getTotalSpace();
long used = total - free;
SysFile sysFile = new SysFile();
sysFile.setDirName(fs.getMount());
sysFile.setSysTypeName(fs.getType());
sysFile.setTypeName(fs.getName());
sysFile.setTotal(convertFileSize(total));
sysFile.setFree(convertFileSize(free));
sysFile.setUsed(convertFileSize(used));
sysFile.setUsage(Arith.mul(Arith.div(used, total, 4), 100));
sysFiles.add(sysFile);
}
}
/**
* 字节转换
*
* @param size 字节大小
* @return 转换后值
*/
public String convertFileSize(long size) {
long kb = 1024;
long mb = kb * 1024;
long gb = mb * 1024;
if (size >= gb) {
return String.format("%.1f GB", (float) size / gb);
} else if (size >= mb) {
float f = (float) size / mb;
return String.format(f > 100 ? "%.0f MB" : "%.1f MB", f);
} else if (size >= kb) {
float f = (float) size / kb;
return String.format(f > 100 ? "%.0f KB" : "%.1f KB", f);
} else {
return String.format("%d B", size);
}
}
}
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