SSH之Struts入门

目标：
Struts的初步使用：
1、Struts的配置

          依赖->导入jar包->maven的pom.xml

          做配置->web.xml配置中央控制器->配置过滤器

          框架配置文件->mvc.xml->struts.xml

          开发->写子控制器继承ActionSupport

2、Struts动态方法调用

3、Struts的传参

   自定义mvc：Modeldriver接口传参；

   Struts：①、Modeldriver接口传参；

                ②、set方法传参；

                ③、通过对象属性传参；

导jar包：Struts、Tomcat

Struts：

     
            org.apache.struts
            struts2-core
            2.5.13
       

Tomcat：

            javax.servlet
            javax.servlet-api
            4.0.1
            provided
       

配置过滤器

路径（org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter）

Ctrl+Shift+T：查找

 在web.xml文件中做配置

      struts
      org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter 
  
  
     struts
     *.action
  

导入配置文件

 struts.xml

struts-sy.xml

	
	
	
	
		/bookEdit.jsp
	
	
	
	
	

Demo1Action 
 

package com.lsy.one.web;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;

import com.lsy.one.entity.User;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class Demo1Action extends ActionSupport{

	

	public String add() throws Exception {
		System.out.println("add方法.....");
		return "bookEdit";
	}
	
	public String del() throws Exception {
		System.out.println("del方法.....");
		return "bookEdit";
	}
	
	public String edit() throws Exception {
		System.out.println("del方法.....");
		return "bookEdit";
	}
	
	
	
}

demo1.jsp(操作界面)

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>







struts的动态方法调用
新增

修改

删除 

删除 

bookEdit.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>







成功界面

建立实体类user

package com.lsy.one.entity;

public class User {
	private String uid;
	private String uname;
	public String getUid() {
		return uid;
	}
	public void setUid(String uid) {
		this.uid = uid;
	}
	public String getUname() {
		return uname;
	}
	public void setUname(String uname) {
		this.uname = uname;
	}
	@Override
	public String toString() {
		return "User [uid=" + uid + ", uname=" + uname + "]";
	}
	
}

三种传参方法：

（1）、Modeldriver接口传参

Demo1Action 

package com.lsy.one.web;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;

import com.lsy.one.entity.User;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class Demo1Action extends ActionSupport{
	private User user1=new User();
	
	
	public User getUser1() {
		return user1;
	}

	public void setUser1(User user1) {
		this.user1 = user1;
	}


	
	public String list() throws Exception {
		System.out.println("list方法.....");
		System.out.println(user1);
		System.out.println(sex);
		HttpServletRequest request = ServletActionContext.getRequest();
		request.setAttribute("age", 12);
		req.setAttribute("hobby", "打王者");
		return "bookEdit";
	}
	
	@Override
	public User getModel() {
		return user1;
	}

}

demo1.jsp

ModelDriver接口传参

  （2）、set方法传参

Demo1Action 

package com.lsy.one.web;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;

import com.lsy.one.entity.User;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

	private User user1=new User();
	private String sex;

	
	
	public User getUser1() {
		return user1;
	}

	public void setUser1(User user1) {
		this.user1 = user1;
	}


	public String getSex() {
		return sex;
	}

	public void setSex(String sex) {
		this.sex = sex;
	}

	
	
	public String list() throws Exception {
		System.out.println("list方法.....");
		System.out.println(user1);
		System.out.println(sex);
		HttpServletRequest request = ServletActionContext.getRequest();
		request.setAttribute("age", 12);
		req.setAttribute("hobby", "打王者");
		return "bookEdit";
	}
	
	@Override
	public User getModel() {
		return user1;
	}

	
}

demo1.jsp 

set方法传参

结果展示

 （3）通过对象属性传参

 Demo1Action 

package com.lsy.one.web;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;

import com.lsy.one.entity.User;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class Demo1Action extends ActionSupport implements ModelDriven{

	private User user1=new User();
	private User user2;
	
	
	public User getUser1() {
		return user1;
	}

	public void setUser1(User user1) {
		this.user1 = user1;
	}

	public User getUser2() {
		return user2;
	}

	public void setUser2(User user2) {
		this.user2 = user2;
	}

	
	
	
	public String list() throws Exception {
		System.out.println("list方法.....");
		System.out.println(user1);
		System.out.println(sex);
		HttpServletRequest request = ServletActionContext.getRequest();
		request.setAttribute("age", 12);
		req.setAttribute("hobby", "打王者");
		return "bookEdit";
	}
	
	@Override
	public User getModel() {
		return user1;
	}

}

demo1.jsp 

对象属性传参

两种方式：

①、类置类

HttpServletRequest request = ServletActionContext.getRequest();
        request.setAttribute("age", 12);

 ②、实现接口

实现两个接口：ServletRequestAware、ServletResponseAware

重写方法：

	@Override
	public void setServletResponse(HttpServletResponse arg0) {
		this.resp=arg0;
		
	}

	@Override
	public void setServletRequest(HttpServletRequest arg0) {
		this.req=arg0;
	}

 Demo1Action 全界面

package com.lsy.one.web;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;

import com.lsy.one.entity.User;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

public class Demo1Action extends ActionSupport implements ModelDriven,ServletRequestAware,ServletResponseAware{
	private HttpServletRequest req;
	private HttpServletResponse resp;
	
	
	private User user1=new User();
	private String sex;
	private User user2;
	
	
	public User getUser1() {
		return user1;
	}

	public void setUser1(User user1) {
		this.user1 = user1;
	}

	public User getUser2() {
		return user2;
	}

	public void setUser2(User user2) {
		this.user2 = user2;
	}

	public String getSex() {
		return sex;
	}

	public void setSex(String sex) {
		this.sex = sex;
	}

	public String add() throws Exception {
		System.out.println("add方法.....");
		return "bookEdit";
	}
	
	public String del() throws Exception {
		System.out.println("del方法.....");
		return "bookEdit";
	}
	
	public String edit() throws Exception {
		System.out.println("del方法.....");
		return "bookEdit";
	}
	
	public String list() throws Exception {
		System.out.println("list方法.....");
		System.out.println(user1);
		System.out.println(sex);
		HttpServletRequest request = ServletActionContext.getRequest();
		request.setAttribute("age", 12);
		req.setAttribute("hobby", "打王者");
		return "bookEdit";
	}
	
	@Override
	public User getModel() {
		return user1;
	}

	@Override
	public void setServletResponse(HttpServletResponse arg0) {
		this.resp=arg0;
		
	}

	@Override
	public void setServletRequest(HttpServletRequest arg0) {
		this.req=arg0;
	}
}

bookEdit.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>







成功界面
${age }
${hobby }

结果展示

再见