ajax setup过滤机制，获取后台的运行时异常（RuntimeException）做提示信息

//运行是异常

ajaxSetup是ajax的一个拦截器，可以拦截表单的提交，也可以拦截后台的运行时异常，做一些提示弹框

ajaxSetup只会补做运行时异常

利用ajax的setup控制将系统的错误信息弹出到页面

timeout.js

$(function(){
//解决ajax超时问题bywanghao2013-10-31begin
varisChecked=false;
varisCheckedValue=null;
varisTimeout=false;
//这个可以单独的放到另外一个js
varshowExceptionInfo=function(msg){
showWindow("exceptionWindow","错误提示");
$("#exceptionWindow.ball_layer_pointout06").text("系统服务异常，异常信息："+msg);
};
$.ajaxSetup({
"cache":false,
"complete":function(XMLHttpRequest,textStatus){
//在每个ajax请求后进行删除权限验证
if(XMLHttpRequest.responseText=="IS_CAN_DELETE_TRUE"||XMLHttpRequest.responseText=="IS_CAN_DELETE_FALSE"){
//如果本身已经获取到删除权限，不再继续验证，从而避免死循环
return;
}
},
"error":function(textStatus,errorThrown){
if(textStatus.status==200){
return;
}
unDisplayProgress();
//全局处理异常，所有的业务代码都不再需要手动处理error！！！bywanghao2013-12-3
vartext=textStatus.responseText;
varstart=text.indexOf("<h1>");
varend=text.indexOf("</h1>");
varerror=text.substring(start+4,end);
if(error=="TIME_OUT"&&!isTimeout){
isTimeout=true;
alert("操作超时，为保证系统安全，请重新登录，谢谢！");
window.location=basePath;
return;
}elseif(!error){
//console.log("后台异常，但是无异常信息，不影响系统功能！"+text);
}else{
showExceptionInfo(error);
}
}
});
varrenderDeleteButton=function(isCanDelete){
//console.log(newDate()+"-->"+isCanDelete);
if(isCanDelete=="IS_CAN_DELETE_TRUE"){
$("link[title='extra']").attr("disabled","disabled");
$(".del_report_btn").css("display","inline-block");
$(".table_delete_btn").css("display","inline-block");
$(".del_btn").css("display","inline-block");
$(".table_delete_dis_btn").css("display","inline-block");
}elseif(isCanDelete=="IS_CAN_DELETE_FALSE"){
$("link[title='extra']").removeAttr("disabled");
$(".del_report_btn").remove();
$(".table_delete_btn").remove();
$(".del_btn").remove();
$(".table_delete_dis_btn").remove();
}
};
//立即执行删除权限验证
//checkIsCanDelete();
});

jsp：

这个错误消息框可以在simesh中配置，装饰到每一个页面

<divid="exceptionWindow"class="ball_boxball_box06"style="display:none;z-index:99999999;width:290px;">
<divclass="bg_boder">
<h2>
<ahref="#"class="del"></a>错误提示
</h2>
<divclass="ball_layer_pointout06"></div>
<divclass="ball_btn_box">
<center>
<ahref="javascript:void(0)"class="ball_btn_true">确定</a>
</center>
</div>
</div>
</div>
//后台处理时抛出运行是异常即可
@Service("overviewService")
publicclassOverviewServiceImplimplementsIOverviewService{
privateLoggerlogger=Logger.getLogger(OverviewServiceImpl.class);
@Override
publicSummeryOfResourcesVOgetSummeryOfResource(){
logger.info("查询一组资源使用情况(云主机、虚拟内核、虚拟内存、安全组)信息");
finalSummeryOfResourcesVOvo=newSummeryOfResourcesVO();
finalJSONObject[]provider=newJSONObject[1];
finalString[]reslt=newString[1];
/**取资源使用情况*/
HttpClientRequestrequest=newHttpClientGetRequest(ConfigFileLoad.getConfContent("API_IP")+"/rest/resource_used");
try{
request.process(newHttpClientResponseHandler(){
@Override
publicvoidhandle(Stringresponse,StringretCode,Stringmsg)throwsHttpClientException,ManoException{
logger.debug("查询一组资源使用情况信息,返回状态："+retCode+",返回信息："+msg);
JSONObjectobj=JSONObject.parseObject(response);
if(obj.get("result")!=null){
System.out.println(obj.get("result").toString());
JSONObjectjsonObj=JSONObject.parseObject(obj.get("result").toString());
if(jsonObj==null){
//&&!reslt[0].equals("0")
return;
}
//一、请求并计算云主机信息
Integervms=jsonObj.getInteger(Constants.OverView.VMS);
Integerused_vms=jsonObj.getInteger(Constants.OverView.USED_VMS);
Integerunused_vms=0;
if(vms==null||vms.equals("")){
vms=0;
}elseif(used_vms==null||used_vms.equals("")){
used_vms=0;
}else{
unused_vms=vms-used_vms;
}
vo.setCloudPlatformAll(String.valueOf(vms));
vo.setCloudPlatformUsed(String.valueOf(used_vms));
vo.setCloudPlatformUnUsed(String.valueOf(unused_vms));
//二、请求虚拟内核
Integercpus=jsonObj.getInteger(Constants.OverView.CPUS);
Integerused_cpus=jsonObj.getInteger(Constants.OverView.USED_CPUS);
Integerunused_cpus=0;
if(cpus==null||cpus.equals("")){
cpus=0;
}elseif(used_cpus==null||used_cpus.equals("")){
used_cpus=0;
}else{
unused_cpus=cpus-used_cpus;
}
vo.setVirtualKernelAll(String.valueOf(cpus));
vo.setVirtualKernelUsed(String.valueOf(used_cpus));
vo.setVirtualKernelUnUsed(String.valueOf(unused_cpus));
//三、请求虚拟内存
Integermems=jsonObj.getInteger(Constants.OverView.MEMS);
Integerused_mem=jsonObj.getInteger(Constants.OverView.USED_MEM);
Integerunused_mem=0;
if(mems==null||mems.equals("")){
mems=0;
}elseif(used_mem==null||used_mem.equals("")){
used_mem=0;
}else{
unused_mem=mems-used_mem;
}
vo.setVirtualMemoryAll(String.valueOf(mems));
vo.setVirtualMemoryUsed(String.valueOf(used_mem));
vo.setVirtualMemoryUnUsed(String.valueOf(unused_mem));
//四、请求安全组
Integersecurity_group=jsonObj.getInteger(Constants.OverView.SECURITY_GROUP);
Integerused_security_group=jsonObj.getInteger(Constants.OverView.USED_SECURITY_GROUP);
Integerunused_security_group=0;
if(security_group==null||security_group.equals("")){
security_group=0;
}elseif(used_security_group==null||used_security_group.equals("")){
used_security_group=0;
}else{
unused_security_group=security_group-used_security_group;
}
vo.setSecurityGroupAll(String.valueOf(security_group));
vo.setSecurityGroupUsed(String.valueOf(used_security_group));
vo.setSecurityGroupUnUsed(String.valueOf(unused_security_group));
}else{
/**provider连接数*/
HttpClientRequestrequestProvider=newHttpClientGetRequest(ConfigFileLoad.getConfContent("API_IP")+
"/rest/provider_network_cn");
try{
requestProvider.process(newHttpClientResponseHandler(){
@Override
publicvoidhandle(Stringresponse,StringretCode,Stringmsg)throwsHttpClientException{
logger.debug("查询一组资源使用情况信息,返回状态："+retCode+",返回信息："+msg);
provider[0]=JSONObject.parseObject(response);
System.out.println(provider[0].get("result").toString()+"rrrrrrrrrrrrr");
StringjsonObj=provider[0].get("result").toString();
reslt[0]=jsonObj;
if(jsonObj==null)
return;
}
});
}catch(HttpClientExceptione){
e.printStackTrace();
}
//////////////////ManoException是运行是异常
if(reslt[0].equals("0")){
thrownewManoException("0","没建立与openstack的连接，请检查openstack资源中openstack提供者是否已添加");
}else{
thrownewManoException("1","没有数据");
}
//thrownewHttpClientException("没建立连接");
}
}});
}catch(HttpClientExceptione){
thrownewManoException("1","没建立连接");
}
logger.info("SummeryOfResourcesVOis"+vo.toString());
returnvo;
}
}
//运行时异常
packagecom.certusnet.nfv.mano.exception;
importjava.util.Locale;
importjavax.ws.rs.ext.Provider;
importorg.springframework.web.context.ContextLoaderListener;
/**
*ManoException，统一处理异常编码和异常信息
*@authorBiwei
*
*/
@Provider
publicclassManoExceptionextendsRuntimeException{
publicstaticfinallongserialVersionUID=11111111111L;
publicManoException(Throwablethrowable){
super(throwable);
}
publicManoException(Stringcode,Stringmsg){
super(msg);
this.code=code;
}
/**
*messagekey
*/
privateStringcode;
/**
*messageparams
*/
privateObject[]params;
publicStringgetCode(){
returncode;
}
publicvoidsetCode(Stringcode){
this.code=code;
}
publicObject[]getParams(){
returnparams;
}
publicvoidsetParams(Object[]params){
this.params=params;
}
}