服務端
public void cpu() throws SigarException {
Sigar sigar = new Sigar();
CpuInfo infos[] = sigar.getCpuInfoList();
CpuPerc cpuList[] = sigar.getCpuPercList();
JSONObject jsonObject = new JSONObject();
JSONArray jsonArray = new JSONArray();
for (int i = 0, len = infos.length; i < len; i++) {// 不管是單塊CPU還是多CPU都適用
CpuInfo info = infos[i];
JSONObject jso = new JSONObject();
jso.put("mhz", info.getMhz()); //CPU的總量MHz
jso.put("company", info.getVendor()); //CPU的廠商
jso.put("model", info.getModel()); //CPU型號類別
jso.put("cache_size", info.getCacheSize()); // 緩衝緩存數量
CpuPerc cpu = cpuList[i];
jso.put("freq_user", CpuPerc.format(cpu.getUser())); //CPU的用戶使用率
jso.put("freq_sys", CpuPerc.format(cpu.getSys())); //CPU的系統使用率
jso.put("freq_wait", CpuPerc.format(cpu.getWait())); //CPU的當前等待率
jso.put("freq_nice", CpuPerc.format(cpu.getNice())); //CPU的當前錯誤率
jso.put("freq_idle", CpuPerc.format(cpu.getIdle())); //CPU的當前空閒率
jso.put("freq_combined", CpuPerc.format(cpu.getCombined())); //CPU總的使用率
jsonArray.add(jso);
}
jsonObject.put("cpu", jsonArray);
renderJson(jsonObject);
}
public void jvm() throws UnknownHostException {
Runtime r = Runtime.getRuntime();
Properties props = System.getProperties();
JSONObject jsonObject = new JSONObject();
jsonObject.put("jvm_memory_total", r.totalMemory()); //JVM可以使用的總內存
jsonObject.put("jvm_memory_free", r.freeMemory()); //JVM可以使用的剩餘內存
jsonObject.put("jvm_processor_avaliable", r.availableProcessors()); //JVM可以使用的處理器個數
jsonObject.put("jvm_java_version", props.getProperty("java.version")); //Java的運行環境版本
jsonObject.put("jvm_java_vendor", props.getProperty("java.vendor")); //Java的運行環境供應商
jsonObject.put("jvm_java_home", props.getProperty("java.home")); //Java的安裝路徑
jsonObject.put("jvm_java_specification_version", props.getProperty("java.specification.version")); //Java運行時環境規範版本
jsonObject.put("jvm_java_class_path", props.getProperty("java.class.path")); //Java的類路徑
jsonObject.put("jvm_java_library_path", props.getProperty("java.library.path")); //Java加載庫時搜索的路徑列表
jsonObject.put("jvm_java_io_tmpdir", props.getProperty("java.io.tmpdir")); //默認的臨時文件路徑
jsonObject.put("jvm_java_ext_dirs", props.getProperty("java.ext.dirs")); //擴展目錄的路徑
renderJson(jsonObject);
}
public void memory() throws SigarException {
Sigar sigar = new Sigar();
Mem mem = sigar.getMem();
JSONObject jsonObject = new JSONObject();
jsonObject.put("memory_total", mem.getTotal() / (1024 * 1024L));// 內存總量
jsonObject.put("memory_used", mem.getUsed() / (1024 * 1024L));// 當前內存使用量
jsonObject.put("memory_free", mem.getFree() / (1024 * 1024L));// 當前內存剩餘量
Swap swap = sigar.getSwap();
jsonObject.put("memory_swap_total", swap.getTotal() / (1024 * 1024L));// 交換區總量
jsonObject.put("memory_swap_used", swap.getUsed() / (1024 * 1024L));// 當前交換區使用量
jsonObject.put("memory_swap_free", swap.getFree() / (1024 * 1024L));// 當前交換區剩餘量
renderJson(jsonObject);
} 前端例子，cpu.js
layui.use(['jquery'], function() {
$ = layui.jquery;
$(function(){
var cpu_length=0;
var date = [];
var data = [];
var cpu_echarts=[];
$.ajax({
url:"/back/home/cpu",
type:"get",
async: false,
success:function(data){
cpu_length=data.cpu.length;
}
});
var dd=[];
for(var j=120;j>0;j--){
dd.push(0);
}
for(var i=0;i<cpu_length;i++){
$("#cpu_show").append('<div id="cpu_'+i+'" class="cpu"></div>');
cpu_echarts[i]=echarts.init(document.getElementById("cpu_"+i))
data[i]=dd;
}
for(var i=120;i>0;i--){
date.push(i);
}
var option = {
animation:false,
title: {
left: 'center',
text: 'cpu',
},
xAxis: {
type: 'category',
boundaryGap: false,
data: date,
axisLabel:{
formatter:'{value}s'
}
},
yAxis: {
type: 'value',
boundaryGap: false,
max:100,
axisLabel:{
formatter:'{value}%'
}
},
series: [
{
name:'cpu數據',
type:'line',
smooth:true,
symbol: 'none',
sampling: 'average',
itemStyle: {
normal: {
color: 'rgb(255, 70, 131)'
}
},
areaStyle: {
normal: {
color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: 'rgb(255, 158, 68)'
}, {
offset: 1,
color: 'rgb(255, 70, 131)'
}])
}
},
data: []
}
]
};
setInterval(function (){
$.post("/back/home/cpu",function(result){
$("#serverInfo_cpu").empty();
$("#serverInfo_cpu").append(JSON.stringify(result));
$.each(result.cpu,function(k,v){
var ddd=[];
for(var i=1;i<120;i++){
ddd.push(data[k][i]);
}
var num=(v.freq_combined).substring(0,(v.freq_combined).length-1);
ddd.push(Math.floor(num));
data[k]=ddd;
option.series[0].data=data[k];
option.yAxis.max=100;
option.title.text="cpu"+k+" 使用率"+num+"%";
cpu_echarts[k].setOption(option);
});
});
},1000);
});
});
附上sigar相關包 免積分下載地址：
