基于snmp 交换机监控系统实现
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交换机监控系统，主要是监控网络交换机的各项数据，端口状态，上下行速率，设备在线状态以及限速，POE开关控制，设备重启等等，主要用于网络环境，机房监控，动环等系统集成。
- 仪表盘
- 数据采集
- 告警处理
- 网络安全
- 数据分析
- 报表分析
- 消息推送
- 网络性能分析优化
- 大屏可视化
1.准备工作
1.熟悉SNMP协议
2.熟悉使用MIB Browser调试工具
3.厂商提供私有MIB文件
4.熟悉共有私有OID
5.熟悉使用jPoto HTML5 Canvas
| 类型 | 技术栈 |
|---|---|
| 前端 | JSP Servlet Jquery Echart DataTable Canvas |
| 后端 | Spring Struts Hibernate |
| 环境 | JDK1.8+ Mysql5.6+ Maven3.5+ |
| 工具 | IntelliJ IDEA 18.3 |
| 部署 | Tomcat |
| 类型 | 说明 |
|---|---|
| 厂商 | 深圳光网视POE交换机 |
| 型号 | ONV-POE36028PFM |
| 协议 | SNMP V2 |
| 工具 | MIB Browser |
2.系统页面
图一中分为3部分：
左上：交换机的上传下载实时速率，echarts仪表盘
左下：CPU负荷率，echarts折线图
右边：机房网络拓扑图，用的jPoto HTML5 Canvas实现
图二是交换机24口的列表信息以及交换机的IP设置，和重启刷新
3.页面核心代码
网络拓扑图
基于用jPoto HTML5 Canvas实现的，参照官网Demo
var canvasHeight = windowHeight - 250;
var canvasWidth = (windowWidth - 300)/2;
//初始化画布
var canvas = document.getElementById('canvas');
var stage = new JTopo.Stage(canvas);
//显示工具栏
//showJTopoToobar(stage);
var scene = new JTopo.Scene();
//scene.background = '/ibms/image/bgnew.jpg';
//创建节点
function node(x, y,img,text){
var node = new JTopo.Node();
if(img != null){
node.setImage('/ibms/alarmMonitoring/img/' + img, true);
}
if(text != null){
node.text = text;
}
node.setLocation(x, y);
scene.add(node);
return node;
}
var dianXin = node(300, 50, 'vpc.png','Internet');
var jiaoHuanJi = node(300, 150, 'jhj.png','Switch');
var luYouQi = node(300, 250, 'net1.png','Router');
linkNode(dianXin, jiaoHuanJi, false);
linkNode(jiaoHuanJi, luYouQi, false);
var wangZi = node(50, 500, 'pc.png','WPPC');
wangZi.alarm = 'CPU负荷：89%\n内存占用：88%\nCPU温度：88℃\n上传速度：55mb/s\n下载速度：88ms/s\n运行时长：12h 45m\nip地址：192.168.1.44\nDNS攻击：0';
wangZi.paintAlarmText = function(a) {
if (null != this.alarm && "" != this.alarm) {
var b = this.alarmColor || "255,140,140",
c = this.alarmAlpha || .5;
a.beginPath(),
a.font = this.alarmFont || "10px 微软雅黑";
var textArray = this.alarm.split('\n');
var rowCnt = textArray.length;
var i = 0, maxLength = 0, maxText = textArray[0];
for(;i<rowCnt;i++){
var nowText = textArray[i],textLength = nowText.length;
if(textLength >=maxLength){
maxLength = textLength;
maxText = nowText;
}
}
var maxWidth = a.measureText(maxText).width;
var lineHeight = 16; // 字体大小 + 6
// alarm框的宽度
var d =( (a.measureText(this.alarm).width/rowCnt +6) > maxWidth? (a.measureText(this.alarm).width/rowCnt +6) : maxWidth);
var e =(lineHeight)*(rowCnt), // alarm 框高度 行高*行数
f = this.width / 2 - d / 2 , // alarm 框横向位置
g = - this.height /2 - e - 20; // alarm 纵横向位置
//
//绘制alarm框
a.strokeStyle = "rgba(" + b + ", " + c + ")",
a.fillStyle = "rgba(" + b + ", " + c + ")",
a.lineCap = "round",
a.lineWidth = 1,
a.moveTo(f -10, g - 10), // 左上 这些10是调整 alarm 边框离文字的距离
a.lineTo(f + d +10, g - 10), // 右上
a.lineTo(f + d +10, g + e + 10), // 右下
a.lineTo(f + d / 2 + 6, g + e + 10),
a.lineTo(f + d / 2, g + e + 8 + 10),
a.lineTo(f + d / 2 - 6, g + e + 10),
a.lineTo(f - 10, g + e + 10), // 左下
a.lineTo(f -10, g -10),
a.fill(),
a.stroke(),
a.closePath(),
a.beginPath(),
a.strokeStyle = "rgba(" + this.fontColor + ", " + this.alpha + ")",
a.fillStyle = "rgba(" + this.fontColor + ", " + this.alpha + ")",
(function(a,b,x,y,textArray){
for(var j= 0;j<textArray.length;j++){
var words = textArray[j];
a.fillText(words,x ,y);
y+= lineHeight;
}
})(a,this,f,g+8,textArray),
a.closePath()
}
}
var zhangZi = node(150, 500, 'pc.png','ZQPC');
var zhaoZi = node(250, 500, 'pc.png','ZWPC');
var liuZi = node(350, 500, 'pc.png','LHZPC');
var linuxServer = node(450, 500, 'server.png','linux');
linuxServer.alarm = 'CPU负荷：23%;\n内存占用：44%\nCPU温度：56℃\n上传速度：45mb/s\n下载速度：67ms/s\n运行时长：22h 45m\n内网地址：192.168.1.66\nDNS攻击：0';
linuxServer.paintAlarmText = function(a) {
if (null != this.alarm && "" != this.alarm) {
var b = this.alarmColor || "154, 230, 125",
c = this.alarmAlpha || .5;
a.beginPath(),
a.font = this.alarmFont || "10px 微软雅黑";
var textArray = this.alarm.split('\n');
var rowCnt = textArray.length;
var i = 0, maxLength = 0, maxText = textArray[0];
for(;i<rowCnt;i++){
var nowText = textArray[i],textLength = nowText.length;
if(textLength >=maxLength){
maxLength = textLength;
maxText = nowText;
}
}
var maxWidth = a.measureText(maxText).width;
var lineHeight = 16; // 字体大小 + 6
// alarm框的宽度
var d =( (a.measureText(this.alarm).width/rowCnt +6) > maxWidth? (a.measureText(this.alarm).width/rowCnt +6) : maxWidth);
var e =(lineHeight)*(rowCnt), // alarm 框高度 行高*行数
f = this.width / 2 - d / 2 , // alarm 框横向位置
g = - this.height /2 - e - 20; // alarm 纵横向位置
//
//绘制alarm框
a.strokeStyle = "rgba(" + b + ", " + c + ")",
a.fillStyle = "rgba(" + b + ", " + c + ")",
a.lineCap = "round",
a.lineWidth = 1,
a.moveTo(f -10, g - 10), // 左上 这些10是调整 alarm 边框离文字的距离
a.lineTo(f + d +10, g - 10), // 右上
a.lineTo(f + d +10, g + e + 10), // 右下
a.lineTo(f + d / 2 + 6, g + e + 10),
a.lineTo(f + d / 2, g + e + 8 + 10),
a.lineTo(f + d / 2 - 6, g + e + 10),
a.lineTo(f - 10, g + e + 10), // 左下
a.lineTo(f -10, g -10),
a.fill(),
a.stroke(),
a.closePath(),
a.beginPath(),
a.strokeStyle = "rgba(" + this.fontColor + ", " + this.alpha + ")",
a.fillStyle = "rgba(" + this.fontColor + ", " + this.alpha + ")",
(function(a,b,x,y,textArray){
for(var j= 0;j<textArray.length;j++){
var words = textArray[j];
a.fillText(words,x ,y);
y+= lineHeight;
}
})(a,this,f,g+8,textArray),
a.closePath()
}
}
var windowsServer = node(550, 500, 'server.png','windows');
var print = node(200, 300, 'print.png','print');
var disk = node(400, 300, 'disk.png','videoDisk');
var video = node(500, 300, 'video.png','video');
hostLink(luYouQi, wangZi);
hostLink(luYouQi, zhangZi);
hostLink(luYouQi, zhaoZi);
hostLink(luYouQi, liuZi);
hostLink(luYouQi, linuxServer);
hostLink(luYouQi, windowsServer);
newCurveLink(luYouQi, print);
newCurveLink(luYouQi, disk);
linkNode(disk, video, false);
//直线
function linkNode(nodeA, nodeZ, f){
var link;
if(f){
link = new JTopo.FoldLink(nodeA, nodeZ);
}else{
link = new JTopo.Link(nodeA, nodeZ);
}
link.direction = 'vertical';
scene.add(link);
return link;
}
//曲线
function hostLink(nodeA, nodeZ){
var link = new JTopo.FlexionalLink(nodeA, nodeZ);
link.shadow = false;
link.offsetGap = 80;
scene.add(link);
return link;
}
//曲线
function newCurveLink(nodeA, nodeZ, text){
var link = new JTopo.CurveLink(nodeA, nodeZ, text);
link.lineWidth = 3; // 线宽
scene.add(link);
return link;
}
//报警闪烁
setInterval(function(){
if(print.alarm == '网络连接中断'){
print.alarm = null;
wangZi.alarm = null;
}else{
print.alarm = '网络连接中断';
wangZi.alarm = 'CPU负荷：89%\n内存占用：89%\nCPU温度：88℃\n上传速度：55mb/s\n下载速度：88ms/s\n运行时长：12h 45m\n内网地址：192.168.1.44\nDNS攻击：0';
}
}, 600);
//加入到画布对象中
stage.add(scene);
上传下载仪表盘
//初始化仪表盘
function initCharts(){
var upOption = initOption('上传速度',46);
var downOption = initOption('下载速度',38);
var myChart1 = echarts.init(document.getElementById('echarts1'));
var myChart2 = echarts.init(document.getElementById('echarts2'));
myChart1.setOption(upOption, true);
myChart2.setOption(downOption, true);
setInterval(function () {
upOption.series[0].data[0].value = (Math.random() * 100).toFixed(2) - 0;
downOption.series[0].data[0].value = (Math.random() * 100).toFixed(2) - 0;
myChart1.setOption(upOption, true);
myChart2.setOption(downOption, true);
},2000);
}
//设置option
function initOption(name,value){
var option = {
tooltip : {
formatter: "{a}
{b} : {c}%"
},
series: [
{
name: name,
radius: '100%',
type: 'gauge',
title : {
color:'white'
},
axisLine: {
lineStyle: {
width: 10,
color:[[0.2, '#ff7878'], [0.8, '#efd573'], [1, '#89e274']]
}
},
detail: {
formatter:'{value}mb/s',
fontSize: 18
},
data: [{value: value, name: name}]
}
]
};
return option;
}
CPU负荷率折线图
function initLineChart(){
var data100 = [];
var data10 = [];
var data1 = [];
var xTime = [];
initData();
//从后台获取数据
function initData() {
$.ajax({
url:'/xxx/xxx!searchCpuLoadData.action',
type:'Post',
dataType:"json",
async:true,
success : function(json) {
var dto = json.theObj;
data100.push(dto.cpuLoadPercentAge100msec);
data10.push(dto.cpuLoadPercentAge10sec);
data1.push(dto.cpuLoadPercentAge1sec);
xTime.push(dto.systemRunTimes);
}
});
}
//初始化echarts折线图
var myChart = echarts.init(document.getElementById('echarts3'));
var option = {
title: {
text: 'CPU负荷率(%)',
x: 'center',
textStyle:{
color:'white',
fontSize:16,
fontFamily:'华文细黑'
}
},
color:['#ff7878','#efd573','#89e274'],
legend: {
data:['100ms %','10sec %','1sec %'],
x: 'left',
textStyle:{
color:'white',
fontSize:16,
fontFamily:'华文细黑'
}
},
grid: {
left: '3%',
right: '4%',
bottom: '3%',
containLabel: true
},
textStyle:{
fontSize:20,
color:'white',
fontFamily:'华文细黑'
},
tooltip: {
trigger: 'axis',
axisPointer: {
animation: false
}
},
xAxis: {
type: 'category',
data:xTime,
axisLine:{
lineStyle:{
color:'white'
}
},
splitLine: {
show: false
}
},
yAxis: {
type: 'value',
boundaryGap: [0, '100%'],
axisLine:{
lineStyle:{
color:'white'
}
},
splitLine: {
show: false
}
},
series: [
{
name: '100ms %',
type: 'line',
showSymbol: false,
hoverAnimation: false,
data: data100
},
{
name: '10sec %',
type: 'line',
showSymbol: false,
hoverAnimation: false,
data: data10
},
{
name: '1sec %',
type: 'line',
showSymbol: false,
hoverAnimation: false,
data: data1
}
]
};
//每3秒刷新一次数据
setInterval(function () {
initData();
myChart.setOption({
xAxis:{data:xTime},
series: [
{
name: '100ms %',
data: data100
},{
name: '10sec %',
data: data10
},{
name: '1sec %',
data: data1
}]
});
}, 3000);
myChart.setOption(option, true);
}
24端口监控列表
基于datatable实现，包括交换机的信息，IP设置，重启，刷新，以及每个端口的速度控制，POE开关，当前速度，当前状态，带宽，电流电压功率，温度，允许上传最大限制，累计上传下载包大小等等。
//初始化datatable列表数据
function initNetworkMonitor(){
$.ajax({
url:'/xxx/xxx!searchNetworkMonitorData.action',
type:'Post',
dataType:"json",
async:true,
success : function(json) {
var dto = json.theObj;
var list = dto.list;
var tableInnerHtml = '';
if(list != null && list.length > 0){
for(var i = 0; i < list.length; i ++){
var icon = list[i].status == 1 ? '' : '';
var poe = '';
if(list[i].poeStatus == 3){
poe = '';
}else if(list[i].poeStatus == 4 || list[i].poeStatus == 7){
poe = '';
}else{
poe = '';
}
tableInnerHtml += '' + list[i].portName + ' ' + icon + ' ' + list[i].maxTransUnit + '(bytes) ' + list[i].currentSpeed + ' ' + list[i].macAdd + ' ' + list[i].receivedStr + ' ' + list[i].transmittedStr + ' ' + list[i].temperature + ' ' + poe + ' ' + list[i].poePower + ' ' + list[i].poeCurrent + ' 
正在初始化数据，请稍后。。。4.后台核心代码
Action类核心代码
/**
* @description:获取网络监测数据datatable
* @return
*/
public String searchNetworkMonitorData(){
NetworkMonitorDTO dto = ((NetworkMonitorService)service).getSwitchMonitorDataPublic();
List<NetworkMonitorDTO> list = ((NetworkMonitorService)service).getSwitchMonitorDataPrivate();
dto.setList(list);
JSONObject json = JSONObject.fromObject(dto);
this.setTheObj(json);
return Result.JSON;
}
/**
* @description:重启交换机
* @return
*/
public String reLoadSwitch(){
boolean flag = ((NetworkMonitorService)service).reLoadSwitch();
this.setSuccess(flag);
return Result.JSON;
}
/**
* @description:获取CPU负荷echarts 折线图
* @return
*/
public String searchCpuLoadData(){
NetworkMonitorDTO dto = ((NetworkMonitorService)service).getCpuLoadData();
JSONObject json = JSONObject.fromObject(dto);
this.setTheObj(json);
return Result.JSON;
}
/**
* @description:控制端口速度
* @return
*/
public String configSpeed(){
String speed = this.getRequest().getParameter("speed");
String oid = this.getRequest().getParameter("oid");
boolean flag = ((NetworkMonitorService)service).configSpeed(speed,oid);
this.setSuccess(flag);
return Result.JSON;
}
ConstantEnum枚举类核心代码
/*
* snmpwalk是对OID值的遍历（比如某个OID值下面有N个节点，则依次遍历出这N个节点的值。如果对某个叶子节点的OID值做walk，则取得到数据就不正确了，因为它会认为该节点是某些节点的父节点，而对其进行遍历，而实际上该节点已经没有子节点了，那么它会取出与该叶子节点平级的下一个叶子节点的值，而不是当前请求的节子节点的值。）
* snmpget是取具体的OID的值。（适用于OID值是一个叶子节点的情况）
*/
public final static String SNMP_REQUEST_METHOD_GET = "GET";
public final static String SNMP_REQUEST_METHOD_WALK = "WALK";
public final static String SNMP_REQUEST_METHOD_SET = "SET";
public final static String SNMP_SET_VALUE_TYPE_NULL = null;
public final static String SNMP_SET_VALUE_TYPE_INTEGER = "Integer";//整型
public final static String SNMP_SET_VALUE_TYPE_STRING = "OctetString";//字符串
public final static String SNMP_SET_VALUE_TYPE_TIME = "TimeTicks";//是一个时间单位，表示以0.01s(即10ms)为单位计算的时间
public final static String SNMP_SET_VALUE_TYPE_GAUGE = "Gauge";//非负整数，它可以递增或递减，但达到最大值时保持在最大值，最大值为2^32-1
public static final String COMMUNITY_READ = "public";
public static final String COMMUNITY_WRITE = "private";
public enum MIBObject{
//获取系统基本信息
SysDesc("1.3.6.1.2.1.1.1.0",SNMP_REQUEST_METHOD_GET),
//系统运行时间
SysUptime("1.3.6.1.2.1.1.3.0",SNMP_REQUEST_METHOD_GET),
//系统联系人
SysContact("1.3.6.1.2.1.1.4.0",SNMP_REQUEST_METHOD_GET),
//系统名称
SysName("1.3.6.1.2.1.1.5.0",SNMP_REQUEST_METHOD_GET),
//系统运行的进程列表
HrSWRunName("1.3.6.1.2.1.25.4.2.1.2",SNMP_REQUEST_METHOD_WALK),
//系统安装的软件列表
HrSWInstalledName("1.3.6.1.2.1.25.6.3.1.2",SNMP_REQUEST_METHOD_WALK),
//***********网络接口***********
//获取所有接口mib
IfIndex(".1.3.6.1.2.1.2.2.1.1",SNMP_REQUEST_METHOD_GET),
//获取接口数量
IfNumber(".1.3.6.1.2.1.2.1.0",SNMP_REQUEST_METHOD_GET),
//网络接口信息描述
IfDescr(".1.3.6.1.2.1.2.2.1.2",SNMP_REQUEST_METHOD_GET),
//网络接口类型 (POE交换机接口类型)
IfType(".1.3.6.1.2.1.2.2.1.3",SNMP_REQUEST_METHOD_GET),
//获取接口max transmision unit(short 1518-9600)
IfMTU(".1.3.6.1.2.1.2.2.1.4",SNMP_REQUEST_METHOD_GET),
//接口的物理地址
IfPhysAddress(".1.3.6.1.2.1.2.2.1.6",SNMP_REQUEST_METHOD_GET),
//接口当前操作状态 INTEGER {up(1), down(2),testing(3), unknown(4), dormant(5),notPresent(6), lowerLayerDown(7) }
IfOperStatus(".1.3.6.1.2.1.2.2.1.8",SNMP_REQUEST_METHOD_GET),
//接口收到的字节数
IfInOctet(".1.3.6.1.2.1.2.2.1.10",SNMP_REQUEST_METHOD_GET),
//接口发送的字节数
IfOutOctet(".1.3.6.1.2.1.2.2.1.16",SNMP_REQUEST_METHOD_GET),
//接口带宽
IfSpeed(".1.3.6.1.2.1.2.2.1.5",SNMP_REQUEST_METHOD_GET),
//***********CPU负载***********
/* //系统CPU百分比
SsCpuSystem,
//空闲CPU百分比
SsCpuIdle,
//系统CPU使用时间
SsCpuRawSystem,
//系统CPU空闲时间
SsCpuRawIdle,
//CPU的当前负载，N个核就有N个负载(CPU使用率=N个VALUE相加/N)
HrProcessorLoad,
//***********内存及磁盘***********
//获取内存大小
HrMemorySize,
//存储设备编号
HrStorageIndex,
//存储设备类型
HrStorageType,
//存储设备描述
HrStorageDescr,
//簇的大小
HrStorageAllocationUnits,
//簇的的数目
HrStorageSize,
//使用多少，跟总容量相除就是占用率
HrStorageUsed;*/
//***********光网视交换机***********
//交换机重启 (INTEGER) {noReboot(0), coldReboot(1), warmReboot(2) }
VtssSysutilControlRebootType(".1.3.6.1.4.1.6603.1.24.1.4.1.1.2.1",SNMP_REQUEST_METHOD_SET),
//获取交换机PORT (INTEGER) {force10ModeFdx(0),force10ModeHdx(1),force100ModeFdx(2),force100ModeHdx(3),force1GModeFdx(4),autoNegMode(5),force2G5ModeFdx(6),force5GModeFdx(7),force10GModeFdx(8),force12GModeFdx(9) }
VtssPortConfigSpeed(".1.3.6.1.4.1.6603.1.11.1.2.1.1.3",SNMP_REQUEST_METHOD_GET),
//获取交换机PORT TYPE (INTEGER) {rj45(0), sfp(1), dual(2) }
VtssPortConfigMediaType(".1.3.6.1.4.1.6603.1.11.1.2.1.1.5",SNMP_REQUEST_METHOD_GET),
//获取交换机max transmision unit(short 1518-9600)
VtssPortConfigMTU(".1.3.6.1.4.1.6603.1.11.1.2.1.1.7",SNMP_REQUEST_METHOD_GET),
//获取交换机 received (good and bad) bytes
VtssPortStatisticsRmonStatisticsRxOctets(".1.3.6.1.4.1.6603.1.11.1.5.1.1.3",SNMP_REQUEST_METHOD_GET),
//获取交换机 transmitted (good and bad) bytes
VtssPortStatisticsRmonStatisticsTxOctets(".1.3.6.1.4.1.6603.1.11.1.5.1.1.3",SNMP_REQUEST_METHOD_GET),
//获取交换机port link status (INTEGER) {true(1), false(2) }
VtssPortStatusInformationLink(".1.3.6.1.4.1.6603.1.11.1.3.1.1.2",SNMP_REQUEST_METHOD_GET),
//获取交换机current interface speed(INTEGER) {undefined(0), speed10M(1), speed100M(2),speed1G(3), speed2G5(4), speed5G(5),speed10G(6), speed12G(7) }
VtssPortStatusInformationSpeed(".1.3.6.1.4.1.6603.1.11.1.3.1.1.5",SNMP_REQUEST_METHOD_GET),
//获取交换机接口当前温度
VtssThermalProtectionStatusInterfaceTemperature(".1.3.6.1.4.1.6603.1.78.1.3.1.1.2",SNMP_REQUEST_METHOD_GET),
//获取交换机Average CPU load (%) in 100msec/10sec/1sec.
VtssSysutilStatusCpuLoadAverage100msec("1.3.6.1.4.1.6603.1.24.1.3.1.1.0",SNMP_REQUEST_METHOD_GET),
VtssSysutilStatusCpuLoadAverage10sec("1.3.6.1.4.1.6603.1.24.1.3.1.3.0",SNMP_REQUEST_METHOD_GET),
VtssSysutilStatusCpuLoadAverage1sec("1.3.6.1.4.1.6603.1.24.1.3.1.2.0",SNMP_REQUEST_METHOD_GET),
//获取接口当前POE功率(单位：十瓦特)
VtssPoeStatusInterfacePowerConsumption(".1.3.6.1.4.1.6603.1.43.1.3.1.1.4",SNMP_REQUEST_METHOD_GET),
//获取接口当前POE电流(单位：毫安)
VtssPoeStatusInterfaceCurrentConsumption(".1.3.6.1.4.1.6603.1.43.1.3.1.1.5",SNMP_REQUEST_METHOD_GET),
//获取接口当前POE供电状态(INTEGER) {notSupported(0), budgetExceeded(1), noPoweredDeviceDetected(2), poweredDeviceOn(3), poweredDeviceOff(4), poweredDeviceOverloaded(5), unknownState(6),disabled(7) }
VtssPoeStatusInterfaceCurrentState(".1.3.6.1.4.1.6603.1.43.1.3.1.1.3",SNMP_REQUEST_METHOD_GET);
private String oid;
private String method;
private MIBObject(String oid, String method) {
this.oid = oid;
this.method = method;
}
public String getOid() {
return oid;
}
public void setOid(String oid) {
this.oid = oid;
}
public String getMethod() {
return method;
}
public void setMethod(String method) {
this.method = method;
}
}
SnmpUtil工具类核心代码
/*
* SNMPv3
* 需要创建USM对象并添加User
* 需要创建UserTarget对象，而不是创建CommunityTarget对象
* 需要创建ScopedPDU对象，而不是PDU对象
*/
/**
* @description:创建对象communityTarget
* @param ip
* @param community
* @return
*/
public static CommunityTarget createDefault(String ip, String community) {
//snmp 版本
int version = Integer.valueOf(PropertyUtil.getProperty("snmp_version2c"));
//snmp 端口
int port = Integer.valueOf(PropertyUtil.getProperty("snmp_switch_port"));
//snmp 协议
String protocol = PropertyUtil.getProperty("snmp_default_protocol");
//snmp 超时时间
long timeout = Long.valueOf(PropertyUtil.getProperty("snmp_default_timeout"));
//snmp 重试
int retry = Integer.valueOf(PropertyUtil.getProperty("snmp_default_retry"));
//创建地址
Address address = GenericAddress.parse(protocol + ":" + ip + "/" + port);
//创建CommunityTarget对象
CommunityTarget target = new CommunityTarget();
//设置社区名称
target.setCommunity(new OctetString(community));
//设置ip端口
target.setAddress(address);
//设置版本
target.setVersion(version);
//设置超时时间
target.setTimeout(timeout);
//设置retry
target.setRetries(retry);
return target;
}
/**
* @description:GET方式获取单个OID的单个值
* @param ip
* @param community
* @param oid
*/
public static Map<String, String> snmpGetByOID(String ip, String community, String oid) {
Map<String, String> map = new HashMap<String, String>();
CommunityTarget target = createDefault(ip, community);
Snmp snmp = null;
try {
PDU pdu = new PDU();
pdu.add(new VariableBinding(new OID(oid)));
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
snmp.listen();
pdu.setType(PDU.GET);
ResponseEvent respEvent = snmp.send(pdu, target);
PDU response = respEvent.getResponse();
if (response == null) {
log.warn("response is null, request time out");
} else {
for (int i = 0; i < response.size(); i++) {
VariableBinding vb = response.get(i);
map.put(vb.getOid().toString(), vb.getVariable().toString());
}
}
} catch (Exception e) {
log.error("SNMP snmpGetByOID Exception:" + e);
} finally {
if (snmp != null) {
try {
snmp.close();
} catch (IOException ex1) {
snmp = null;
}
}
}
return map;
}
/**
* @description:GET方式获取多个OID(返回list map)
* @param ip
* @param community
* @param oidList
* @return
*/
public static List<Map<String, String>> snmpGetListMapByOIDs(String ip, String community,List<String> oidList) {
List<Map<String, String>> list = new ArrayList<Map<String,String>>();
CommunityTarget target = createDefault(ip, community);
Snmp snmp = null;
try {
PDU pdu = new PDU();
for (String oid : oidList) {
pdu.add(new VariableBinding(new OID(oid)));
}
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
snmp.listen();
pdu.setType(PDU.GET);
ResponseEvent respEvent = snmp.send(pdu, target);
PDU response = respEvent.getResponse();
if (response == null) {
log.warn("response is null, request time out");
} else {
for (int i = 0; i < response.size(); i++) {
Map<String, String> map = new HashMap<String, String>();
VariableBinding vb = response.get(i);
map.put(vb.getOid().toString(), vb.getVariable().toString());
list.add(map);
}
}
} catch (Exception e) {
log.error("SNMP snmpGetListMapByOIDs Exception:" + e);
} finally {
if (snmp != null) {
try {
snmp.close();
} catch (IOException ex1) {
snmp = null;
}
}
}
return list;
}
/**
* @description:GET方式获取多个OID(返回list string)
* @param ip
* @param community
* @param oidList
* @return
*/
public static List<String> snmpGetListByOIDs(String ip, String community,List<String> oidList) {
List<String> list = new ArrayList<String>();
CommunityTarget target = createDefault(ip, community);
Snmp snmp = null;
try {
PDU pdu = new PDU();
for (String oid : oidList) {
pdu.add(new VariableBinding(new OID(oid)));
}
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
snmp.listen();
pdu.setType(PDU.GET);
ResponseEvent respEvent = snmp.send(pdu, target);
PDU response = respEvent.getResponse();
if (response == null) {
log.warn("response is null, request time out");
} else {
for (int i = 0; i < response.size(); i++) {
VariableBinding vb = response.get(i);
list.add(vb.getVariable().toString());
}
}
} catch (Exception e) {
log.error("SNMP snmpGetListByOIDs Exception:" + e);
} finally {
if (snmp != null) {
try {
snmp.close();
} catch (IOException ex1) {
snmp = null;
}
}
}
return list;
}
/**
* @description:异步GET多个OID
* @param ip
* @param community
* @param oidList
*/
public static List<Map<String, String>> snmpAsynGetListByOIDs(String ip, String community,List<String> oidList) {
final List<Map<String, String>> list = new ArrayList<Map<String,String>>();
CommunityTarget target = createDefault(ip, community);
Snmp snmp = null;
try {
PDU pdu = new PDU();
for (String oid : oidList) {
pdu.add(new VariableBinding(new OID(oid)));
}
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
snmp.listen();
pdu.setType(PDU.GET);
/* 异步获取 */
final CountDownLatch latch = new CountDownLatch(1);
ResponseListener listener = new ResponseListener() {
public void onResponse(ResponseEvent event) {
((Snmp) event.getSource()).cancel(event.getRequest(), this);
PDU response = event.getResponse();
if (response == null) {
log.error("[ERROR]: response is null");
} else if (response.getErrorStatus() != 0) {
log.error("[ERROR]: response status"
+ response.getErrorStatus() + " Text:"
+ response.getErrorStatusText());
} else {
for (int i = 0; i < response.size(); i++) {
Map<String, String> map = new HashMap<String, String>();
VariableBinding vb = response.get(i);
map.put(vb.getOid().toString(), vb.getVariable().toString());
list.add(map);
}
latch.countDown();
}
}
};
snmp.send(pdu, target, null, listener);
latch.await(30, TimeUnit.SECONDS);
} catch (Exception e) {
log.error("SNMP snmpAsynGetListByOIDs Exception:" + e);
} finally {
if (snmp != null) {
try {
snmp.close();
} catch (IOException ex1) {
snmp = null;
}
}
}
return list;
}
/* 根据targetOID，获取树形数据 */
/**
* @description: walk遍历子节点获取所有
* @param ip
* @param community
* @param targetOid
*/
public static List<Map<String, String>> snmpWalk(String ip, String community, String targetOid) {
List<Map<String, String>> list = new ArrayList<Map<String,String>>();
CommunityTarget target = createDefault(ip, community);
TransportMapping transport = null;
Snmp snmp = null;
try {
transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
transport.listen();
PDU pdu = new PDU();
OID targetOID = new OID(targetOid);
pdu.add(new VariableBinding(targetOID));
boolean finished = false;
while (!finished) {
VariableBinding vb = null;
ResponseEvent respEvent = snmp.getNext(pdu, target);
PDU response = respEvent.getResponse();
if (response == null) {
log.warn("response is null, request time out");
finished = true;
break;
} else {
vb = response.get(0);
}
//检查是否遍历完成，否则一直遍历
finished = checkWalkFinished(targetOID, pdu, vb);
if (!finished) {
Map<String, String> map = new HashMap<String, String>();
map.put(vb.getOid().toString(), vb.getVariable().toString());
list.add(map);
//为下一次遍历绑定参数
pdu.setRequestID(new Integer32(0));
pdu.set(0, vb);
} else {
log.info("SNMP walk OID has finished.");
}
}
} catch (Exception e) {
log.error("SNMP snmpWalk Exception:" + e);
} finally {
if (snmp != null) {
try {
snmp.close();
} catch (IOException ex1) {
snmp = null;
}
}
}
return list;
}
/**
* @description:检查walk遍历是否结束
* @param targetOID
* @param pdu
* @param vb
* @return
*/
private static boolean checkWalkFinished(OID targetOID, PDU pdu,VariableBinding vb) {
boolean finished = false;
if (pdu.getErrorStatus() != 0) {
log.info("[true] responsePDU.getErrorStatus() != 0 ");
finished = true;
} else if (vb.getOid() == null) {
log.info("[true] vb.getOid() == null");
finished = true;
} else if (vb.getOid().size() < targetOID.size()) {
log.info("[true] vb.getOid().size() < targetOID.size()");
finished = true;
} else if (targetOID.leftMostCompare(targetOID.size(), vb.getOid()) != 0) {
log.info("[true] targetOID.leftMostCompare() != 0");
finished = true;
} else if (Null.isExceptionSyntax(vb.getVariable().getSyntax())) {
log.info("[true] Null.isExceptionSyntax(vb.getVariable().getSyntax())");
finished = true;
} else if (vb.getOid().compareTo(targetOID) <= 0) {
log.info("[true] Variable received is not lexicographic successor of requested one:");
log.info(vb.toString() + " <= " + targetOID);
finished = true;
}
return finished;
}
/* 根据targetOID，异步获取树形数据 */
public static List<Map<String, String>> snmpAsynWalk(String ip, String community, String oid) {
final List<Map<String, String>> list = new ArrayList<Map<String,String>>();
final CommunityTarget target = createDefault(ip, community);
Snmp snmp = null;
try {
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
snmp.listen();
final PDU pdu = new PDU();
final OID targetOID = new OID(oid);
final CountDownLatch latch = new CountDownLatch(1);
pdu.add(new VariableBinding(targetOID));
ResponseListener listener = new ResponseListener() {
public void onResponse(ResponseEvent event) {
((Snmp) event.getSource()).cancel(event.getRequest(), this);
try {
PDU response = event.getResponse();
if (response == null) {
log.error("[ERROR]: response is null");
} else if (response.getErrorStatus() != 0) {
log.error("[ERROR]: response status"
+ response.getErrorStatus() + " Text:"
+ response.getErrorStatusText());
} else {
VariableBinding vb = response.get(0);
boolean finished = checkWalkFinished(targetOID,pdu, vb);
if (!finished) {
Map<String, String> map = new HashMap<String, String>();
map.put(vb.getOid().toString(), vb.getVariable().toString());
list.add(map);
//为下一次遍历绑定参数
pdu.setRequestID(new Integer32(0));
pdu.set(0, vb);
((Snmp) event.getSource()).getNext(pdu, target, null, this);
} else {
log.error("SNMP Asyn walk OID value success !");
latch.countDown();
}
}
} catch (Exception e) {
log.error("SNMP snmpAsynWalk Exception:" + e);
latch.countDown();
}
}
};
snmp.getNext(pdu, target, null, listener);
boolean wait = latch.await(30, TimeUnit.SECONDS);
} catch (Exception e) {
log.error("SNMP snmpAsynWalk Exception:" + e);
} finally {
if (snmp != null) {
try {
snmp.close();
} catch (IOException ex1) {
snmp = null;
}
}
}
return list;
}
/**
* @description: 设置OID值
* @param ip 主机IP
* @param community 团体名称
* @param oid OID
* @param val 值
* @param valueType 值类型
* @throws IOException
*/
public static boolean setPDUValue(String ip, String community, String oid,String val,String valueType) throws IOException {
boolean flag = false;
CommunityTarget target = createDefault(ip, community);
Snmp snmp = null;
PDU pdu = new PDU();
switch (valueType) {
case ConstantEnum.SNMP_SET_VALUE_TYPE_INTEGER:
pdu.add(new VariableBinding(new OID(oid), new Integer32(Integer.parseInt(val))));
break;
case ConstantEnum.SNMP_SET_VALUE_TYPE_STRING:
pdu.add(new VariableBinding(new OID(oid), new OctetString(val)));
break;
case ConstantEnum.SNMP_SET_VALUE_TYPE_TIME:
pdu.add(new VariableBinding(new OID(oid), new TimeTicks(Long.parseLong(val))));
break;
case ConstantEnum.SNMP_SET_VALUE_TYPE_GAUGE:
pdu.add(new VariableBinding(new OID(oid), new Gauge32(Long.parseLong(val))));
break;
default:
break;
}
pdu.setType(PDU.SET);
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
snmp.listen();
ResponseEvent respEvent = snmp.send(pdu, target);
PDU response = respEvent.getResponse();
if (response == null) {
log.warn("response is null, request time out");
} else {
flag = true;
}
snmp.close();
return flag;
}
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