JAVA Struts2 搭建

java  struts 2搭建

1.web工程

2.将struts2 用到的jar包，拷贝到webcontent/webinf/lib文件夹。下

3.webcontent  下的web.xml  下配置：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>struts2</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
    <filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

4.java Resources/src/建struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
//namespase——>命名空间

 

//extends="struts-default"----->默认继承

//<interceptors> ---->过滤器

//class="cn.stu.strust.MyTime" ----->过滤器所在的包
    <package namespace="/" name="cn.stu.strust" extends="struts-default">
    <interceptors>
    <interceptor name="Mytime" class="cn.stu.strust.MyTime"></interceptor>
    
    </interceptors>

//映射相应

/calss="cn.stu.strust"//action --->所在包类位置   
        <action  name="login" class="cn.stu.strust.loginaction">
            
            <interceptor-ref name="Mytime"></interceptor-ref>//加载自定义过滤器
            <interceptor-ref name="defaultStack"></interceptor-ref>//加载默认过滤器
            <result name="success">/success.jsp</result>
            <result name="error">/error.jsp</result>
            <result name="input">index.jsp</result>//验证返回
        </action>
        
        
        
</package>
            </struts> 

5.包结构如下：

6.logginAction.java

package cn.edu.tsu.se.sturts;
 
import java.util.Map;
 
import javax.servlet.http.HttpSession;
 
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.SessionAware;
 
import cn.edu.tsu.se.sturts.entity.User;
 
import com.opensymphony.xwork2.ActionSupport;
 
 
public class LoginAction extends ActionSupport implements SessionAware{
    private User user;
    Map<String,Object> session ;
    public String login() throws Exception {
        // TODO Auto-generated method stubyste
        System.out.println("action doing");
        if(user.getN1().equals( user.getPwd())){
            //Map<String,Object> session = ActionContext.getContext().getSession();
            session.put("name", user.getN1());
        //    HttpSession session = ServletActionContext.getRequest().getSession();
            //session.setAttribute("name", user.getN1());
            return "success";
        }else{
            return "error";
        }
        
    }
 
    
 
    @Override
    public void validate() {
        // TODO Auto-generated method stub
        if(user.getPwd().equals("1111")){
            this.addFieldError("user.pwd", "密码太简单");
        }
    }
 
 
 
    public void setUser(User user) {
        this.user = user;
    }
    
    public User getUser(){
        return user;
    }
 
 
 
    @Override
    public void setSession(Map<String, Object> arg0) {
        // TODO Auto-generated method stub
        session  = arg0;
    }
 
    
    
    
 
}