ajax 例子

引用

function initCsvModel(year,cityId){
var args = new Object();
args.url= "listUpload!initCsvModel?date="+year+"&cityId="+cityId;
args.onError = processError;
args.onSuccess = initModelLog;
AjaxRequest.get(args);
}
function initModelLog(req){
var rtn =req.responseText;
if(""!=rtn){
//初始化成功，切换模版
changeTemplate(rtn);
}else{
alert("初始化模版失败，请联系管理员!");
}
}
function processError(){
alert("Ajax调用出错");
}

java代码部分
public static void write(HttpServletResponse response,String str,String type){
//回调信息
PrintWriter out = null;
try {
if(type!=null){
if("html".equals(type)){
response.setContentType("text/html;charset=UTF-8"); //设置输出编码格式
}else{
response.setContentType("text/xml;charset=UTF-8"); //设置输出编码格式
}
}
response.setHeader("Cache-Control", "no-cache");
out = response.getWriter();
} catch (IOException e) {
e.printStackTrace();
}
out.write(str);
out.close();
}