Hibernate多属性设值解决方案

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Hibernate

Hibernate Cache JSP HTML

1.在jsp页面写一个隐藏域<input type="updateFields" value="name,age,sex,address,phone"/>

隐藏域中的值是需要修改的属性值,分别用逗号隔开

<%@ page language="java" pageEncoding="UTF-8"%>
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
	<head>
		<base href="<%=basePath%>">
		<title>修改用户</title>
		<meta http-equiv="pragma" content="no-cache">
		<meta http-equiv="cache-control" content="no-cache">
		<meta http-equiv="expires" content="0">
		<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
		<meta http-equiv="description" content="This is my page">
	</head>
	<body>
		<form action="userAction.do" method="post">
			<!-- 需要修改的属性值 -->
			<input type="hidden" value="name,age,sex,address,phone">
		              <input type="text" name="id" value="1">	
			<input type="text" name="name">
			<input type="text" name="age">
			<input type="text" name="sex">
			<input type="text" name="address">
			<input type="text" name="phone">
			
			<input type="submit" value="提交">
		</form>
	</body>
</html>

public class User{
	private String id;
	private String name;
	private String sex;
	private String age;
	private String address;
	private String phone;
	
	
	//get,set省略...
}

2. 然后在Action里面获取需要修改的属性:

String[] updateFields = request.getParameter("updateFields").split(",");

Hibernate从数据库中把User对象load上来User user = UserService.findUser(request.getParamater("id"));

使用BeanUtils工具类将这些需要修改的属性值注入user里面

然后updateUser对象

public class UserAction extends Action{
	public ActionForward execute(ActionMapping mapping, SystemStyle systemStyle, HttpServletRequest request, HttpServletResponse response) {
		String[] request.getParameter("updateFields").split(",");
		
		User user = UserService.findUser(request.getParamater("id"));
		Map<String String[]> m = request.getParamaterMap();
		for(String field:updateFields){
			BeanUtils.setProperty(user,field,m.get(field)[0]);
		}
		UserService.updateUser(user);
		return mapping.findForward("userList");
	}
}

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