$("#email").keyup(function(){
var txt = $(this).val().trim();
if(txt==""){
$("#emailInfo").html("不能为空!");
}else{
$.post(
"formCheck.action?dt="+new Date().getTime(),
{"emailName":txt},
function(data){
if(data.ok){
$("#emailInfo").html("用户名正确!");
b=1;
}else{
$("#emailInfo").html("用户名已经存在!");
}
},
"json"
);
}
});
action:
public String execute(){
UserDAO dao=DAOFactory.getUserDAO();
try {
System.out.println(emailName);
int count=dao.findByEmail(emailName);
System.out.println(count);
if (count==1){
ok=false;
}else{
ok=true;
}
return "find";
} catch (DangException e) {
e.printStackTrace();
return "error";
}
}这样能得到ok的值吗?在就是地址后面的参数dt有什么作用啊 ??
var txt = $(this).val().trim();
if(txt==""){
$("#emailInfo").html("不能为空!");
}else{
$.post(
"formCheck.action?dt="+new Date().getTime(),
{"emailName":txt},
function(data){
if(data.ok){
$("#emailInfo").html("用户名正确!");
b=1;
}else{
$("#emailInfo").html("用户名已经存在!");
}
},
"json"
);
}
});
action:
public String execute(){
UserDAO dao=DAOFactory.getUserDAO();
try {
System.out.println(emailName);
int count=dao.findByEmail(emailName);
System.out.println(count);
if (count==1){
ok=false;
}else{
ok=true;
}
return "find";
} catch (DangException e) {
e.printStackTrace();
return "error";
}
}这样能得到ok的值吗?在就是地址后面的参数dt有什么作用啊 ??
"formCheck.action",
{"emailName":txt,"dt":XXXXX},
function(data){
if(data=='true'){
$("#emailInfo").html("用户名正确!");
b=1;
}else{
$("#emailInfo").html("用户名已经存在!");
}
}ACTIONout.println("true");AJAX 能得到你out.println的数据 也就是response.getwrite();
既然LZ想要时间的话 会到ACTION里面再用也未尝不可呀~!