参数接收

最新推荐文章于 2025-05-02 21:13:00 发布

原创最新推荐文章于 2025-05-02 21:13:00 发布 · 132 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#Java #JSP #Struts #XML

struts2 专栏收录该内容

21 篇文章

订阅专栏

//JSP文件
1、用action属性接收参数：使用action属性接收参数
<a href="user/user!add?name=a&age=8">添加用户</a>

//struts.xml配置
<package name="user" extends="struts-default" namespace="/user">
        <action name="user" class="com.bjsxt.struts2.user.action.UserAction">
            <result>/user_add_success.jsp</result>
        </action>
    </package>

//action
package com.bjsxt.struts2.user.action;

import com.opensymphony.xwork2.ActionSupport;

public class UserAction extends ActionSupport {

	private String name;
	private int age;

	public String add() {
		System.out.println("name=" + name);
		System.out.println("age=" + age);
		return SUCCESS;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}


}

//JSP文件 
2、用Domain Model(域模型)接收参数：//用域模型直接定义对象user，不需要new
使用Domain Model接收参数<a href="user/user?user.name=a&user.age=8">添加用户</a> (使用最频繁)

//struts.xml配置
<package name="user" extends="struts-default" namespace="/user">
        <action name="user" class="com.bjsxt.struts2.user.action.UserAction">
            <result>/user_add_success.jsp</result>
        </action>
    </package>

//action
package com.bjsxt.struts2.user.action;

import com.bjsxt.struts2.user.model.User;
import com.opensymphony.xwork2.ActionSupport;

public class UserAction extends ActionSupport {

	private User user;
	//private UserDTO userDTO;
	public String add() {
		System.out.println("name=" + user.getName());
		System.out.println("age=" + user.getAge());
		return SUCCESS;
	}

	public User getUser() {
		return user;
	}

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

}


package com.bjsxt.struts2.user.model;

public class User {
	private String name;
	private int age;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
}

//JSP文件
3、用ModelDriven(模型驱动接口)接收参数：实现ModelDriven接口，不用管是什么model(对象)调用，直接可以调用getModel方法，使用ModelDriven接收参数<a href="user/user!add?name=a&age=8">添加用户</a>，需要之间new

//struts.xml配置
<package name="user" extends="struts-default" namespace="/user">
        <action name="user" class="com.bjsxt.struts2.user.action.UserAction">
            <result>/user_add_success.jsp</result>
        </action>
    </package>

//action
package com.bjsxt.struts2.user.action;

import com.bjsxt.struts2.user.model.User;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class UserAction extends ActionSupport implements ModelDriven<User>{

	private User user = new User();

	public String add() {
		System.out.println("name=" + user.getName());
		System.out.println("age=" + user.getAge());
		return SUCCESS;
	}

	@Override
	public User getModel() {
		return user;
	}

}


package com.bjsxt.struts2.user.model;

public class User {
	private String name;
	private int age;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
}