struts2接收参数的3中基本方式-优快云博客

本文介绍了三种在Struts2框架中实现表单提交数据到后台处理的方式：直接通过Action属性接收参数、利用DoMainModel方式接收参数以及推荐使用的ModelDriven实现参数传递。

2019独角兽企业重金招聘Python工程师标准>>>

1 action属性接收参数

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form action="loginaction" method="post"> 姓名：<input type="text" name="username"/> 密码：<input type="password" name="password"/> <input type="submit" value="提交"/> </form> </body> </html>

Struts.xml

<action name="loginaction" class="hello.com.LoginAction" method="Login"> <result>/success.jsp</result> </action>

LoginAction.java

public class LoginAction extends ActionSupport {

public String Login(){

   System.out.println(user.getUsername());
	return SUCCESS;
}

private String username; public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } private String password; public String getPassword() { return password; } public void setPassword(String password) { this.password = password; }

}

2 DoMainMethod方式接受参数

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

密码：<input type="password" name="user.password"/>

Struts.xml <action name="loginaction" class="hello.com.LoginAction" method="Login"> <result>/success.jsp</result> </action> User.java package hello.com;

public class User { private String username; public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } private String password; public String getPassword() { return password; } public void setPassword(String password) { this.password = password; }

}

LoginAction.java package hello.com;

import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport { private User user;

public User getUser() {
	return user;
}


public void setUser(User user) {
	this.user = user;
}


public String Login(){

   System.out.println(user.getUsername());
	return SUCCESS;
}

}

3 ModeDriven实现参数传递（推荐使用）

 姓名：<input type="text" name="username"/>

密码：<input type="password" name="password"/>

Struts.xml <action name="loginaction" class="hello.com.LoginAction" method="Login"> <result>/success.jsp</result> </action>

User.java package hello.com;

import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport { private User user;

public User getUser() {
	return user;
}


public void setUser(User user) {
	this.user = user;
}


public String Login(){

   System.out.println(user.getUsername());
	return SUCCESS;
}

}

LoginAction.java

package hello.com;

import com.opensymphony.xwork2.ActionSupport; import com.opensymphony.xwork2.ModelDriven;

public class LoginAction extends ActionSupport implements ModelDriven<User> {

private User user=new User();

public String Login(){

   System.out.println(user.getUsername());
	return SUCCESS;
}


public User getModel() {
	return user;
}

}

转载于:https://my.oschina.net/u/2511906/blog/838703