jQuery ajax 请求和 Submit 提交 form 表单

欧阳凯少

2012-03-15

前台：

<title>modify approver Password</title>
<script type="text/javascript">
$(document).ready(function(){
	
	var oldPass = $("#oldPassword");
	var pass = $("#password");
	var rePass = $("#rePassword");
	$("#content").hide("slow");
	//检查要提交的修改密码表单	   
	 $("#passForm").submit(function() {
		//flag用于判断是否提交表单
		 var flag = false;
		 if(oldPass.val() == '') {
		 	alert("请输入您的原始密码！");
		 	oldPass[0].focus();
		 	return false;
		 }else if(rePass.val() != pass.val()){
			$("#content").show("slow");
			rePass[0].focus();
			return false;
		 }else if(rePass.val() == '' || pass.val() == ''){
			 alert("请输入您的新密码！");
			 return false;
		 }else{
			$.ajax({
		        type : 'GET',
		        contentType : 'application/json',
		        url : '${ctx}/approverPassword/checkPassword.do',
		        data: 'oldPass=' + oldPass.val(),
		        dataType : 'text',
		        //同步
		        async : false,
		        success : function(data) {
		        	if("false" == data) {
		        		alert("原始密码输入错误！");
		        		oldPass.val('');
		        		oldPass[0].focus();
		        		flag = false;
		        	}else if("true" == data) {
		        		flag = true;
		        	}
		        },
		        error : function() {
			    	alert("修改密码错误，请重新输入");
			    	flag = false;
			    }
			});
		 }
		/*  if(flag) {
			alert("密码修改成功，请您重新登录！"); 
		 } */
		 return flag;
	 });
	
});
</script>
</head>
<body>
	modify approver password.<br/>
	<form action="${ctx}/approverPassword/modifyUserPassword.do" id="passForm" name="passForm"  method="post">
		<table>
			<tr><td><input type="hidden" id="userId" name="userId" value="${user.id }"> </td></tr>
			<tr>
				<td>原始密码：</td>
				<td><input type="text" id="oldPassword" name="oldPassword" maxlength="20"/> </td>
			</tr>
			<tr>
				<td>新密码：</td>
				<td><input type="password" id="password" name="password" maxlength="20"/></td>
			</tr>
			<tr>
				<td>再次输入新密码：</td>
				<td>
					<input type="password" id="rePassword" name="rePassword" maxlength="20" />
					<span id="content" style="font-size: 12px; color:red;">两次输入的密码不一样</span>
				</td>
			</tr>
			<tr>
				<td><input type="submit" id="submit" name="submit" value="submit"/></td>
				<td><input type="button" id="cancel" name="cancel" value="cancel"/></td>
			</tr>
		</table>
	</form>
</body>

后台：

/**
	 * check User password 
	 * @param request
	 * @param response
	 * @return ModelAndView
	 */
	@RequestMapping(value="/userPassword/checkPassword", method={RequestMethod.GET, RequestMethod.POST})
	@ResponseBody
	public String checkPassword(@RequestParam("oldPass") String oldPass) {
		String flag1 = "false";
		//取得当前用户的密码
		long id = SecurityUtil.getUserSession().getId();
		User user = userService.findById(id);
		String password = user.getPassword();
		//从界面接收的旧密码
		String oldPassword = Md5.createMD5Password(oldPass);
		//两个密码进行比较
		if(oldPassword.equals(password)) {
			flag1 = "true";
		}else{
			flag1 = "false";
		} 
		return flag1;
	}

/**
	 * modify user password
	 * @return ModelAndView
	 */
	@RequestMapping(value="/userPassword/modifyUserPassword", method={RequestMethod.GET, RequestMethod.POST})
	public ModelAndView modifyUserPassword(HttpServletRequest request, HttpServletResponse response) {
		ModelAndView mv = new ModelAndView("redirect:/login/goIndexPage.do");
		ModelAndView mv1 = new ModelAndView("passwordError");
		//获取参数
		String oldPass = request.getParameter("oldPassword");
		long id = Long.valueOf(request.getParameter("userId"));
		String password = request.getParameter("rePassword");
		//对String类型的密码进行Md5加密
		String Md5Password = Md5.createMD5Password(password);
		//得到要修改的实体
		User user = userService.findById(id);
		//根据user实体user1在表user_access_role表中查找一个UserAccessRole实体 1(user):1(accessRole)
		List<UserAccessRole> list = this.userAccessRoleService.getAccessRoleId("user", user);
		//从list<UserAccessRole>取出实体accessRole
		AccessRole accessRole = list.get(0).getAccessRole();
		//得到实体accessRole的角色名name id
		String roleName = accessRole.getName();
		long roleId = accessRole.getId();
		user.setPassword(Md5Password);
		//判断权限
		if(roleId == userAccessRoleService.USER_ACCESS_ROLE_ID && "true".equals(this.checkPassword(oldPass))) {
			//1.修改pccw_iaas表中的userPassword
			userService.merge(user);
			//2.修改cloud表中的userPassword
			cloudStackUserService.modifyCloudStackUserPassword(user.getCloudUserId(), user.getUserName(), Md5Password);
			return mv;
		}else {
			return mv1;
		}
	}

ajax submit