Struts2环境搭建

希望能在商城项目中用上框架,因此学习了一下SSH框架,

 觉得确实非常强大,现在先说一下struts2环境的搭建

 

1.引入库(在web-inf目录下)..

   这个真心没什么好说..

 

2.引入web.xml文件(在web-inf目录下)

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
   http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<!-- 
    <display-name>Struts Blank</display-name>
 -->
    <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>

    <welcome-file-list>
        <welcome-file>register.jsp</welcome-file>
    </welcome-file-list>

</web-app>

register.jsp表示进入网站默认进入的网页

 

3.在src目录下引入struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
    <!--  
    <constant name="struts.enable.DynamicMethodInvocation" value="false" />
    <constant name="struts.devMode" value="false" />

    <package name="default" namespace="/" extends="struts-default">

        <default-action-ref name="index" />

        <global-results>
            <result name="error">/error.jsp</result>
        </global-results>

        <global-exception-mappings>
            <exception-mapping exception="java.lang.Exception" result="error"/>
        </global-exception-mappings>

        <action name="index">
            <result type="redirectAction">
                <param name="actionName">HelloWorld</param>
                <param name="namespace">/example</param>
            </result>
        </action>
    </package>

    <include file="example.xml"/>
-->
    <!-- Add packages here -->
    
    <constant name="struts.devMode" value="true" />        <!-- 开发模式 -->
    <constant name="struts.i18n.encoding" value="gbk"/>  <!-- 解决中文乱码 -->
    <package name="register" namespace="/" extends="struts-default">

        <action name="register" class="com.shopping.action.UserAction" >
            <result name="success">
                /registerOK.jsp
            </result>
            <result name="error">
                /registerFail.jsp
            </result>
        </action>
    </package>
</struts>

register表示在jsp的form表单引用的action的名字.

另外要注意跳转的jsp前面要加"/"

 

4.建立一个action:

package com.shopping.action;

import java.sql.Timestamp;

import com.opensymphony.xwork2.ActionSupport;

public class UserAction extends ActionSupport{

    private String username;
    private String password;
    private String phone;
    private String address;
    private Timestamp rdate;
    
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public String getPhone() {
        return phone;
    }
    public void setPhone(String phone) {
        this.phone = phone;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
    public Timestamp getRdate() {
        return rdate;
    }
    public void setRdate(Timestamp rdate) {
        this.rdate = rdate;
    }

    public String add() throws Exception {
        // TODO Auto-generated method stub
        System.out.println(username);
        System.out.println(password);
        System.out.println(phone);
        System.out.println(address);
//        if(name.equals("")||!name.equals("admin")){
            this.addFieldError("errmsg", "注册失败!");
            return ERROR;
//        }
        
//        return SUCCESS;
    }
}

action里面有很多domain,这些domain的名字必须和表单中定义的各项的名字相一致,这样才能正确的得到取值

 

5.建立一个jsp(这里表示要跳转到struts.xml文件中action name=register所引用的action下的add方法):

<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
<!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=GB18030">
<script type="text/javascript" src="scripts/regcheckdata.js"></script>
<title>注册界面</title>
</head>
<body>
    
<%
String path=request.getContextPath();
String rpath=request.getScheme()+"://" + request.getServerName()+":" +
                request.getServerPort() + path + "/";
%>
    
    <form action="<%=rpath %>register!add" method="post">

        <table border="2" width="90%" height="90%">
            <tr>
                <td colspan="2"><center>用户注册</center></td>
            </tr>
            
            <tr>
                <td>用户名:</td>
                <td><input id="username" type="text" name="username"></td>
            </tr>
            
            <tr>
                <td>密码:</td>
                <td><input id="password" type="password" name="password"></td>
            </tr>
            
            <tr>
                <td>密码确认:</td>
                <td><input id="password2" type="password" name="password2"></td>
            </tr>
            
            <tr>
                <td>电话号码:</td>
                <td><input id="phone" type="text" name="phone"></td>
            </tr>
            
            <tr>
                <td>地址:</td>
                <td><input id="address" type="text" name="address"></td>
            </tr>
            
            <tr>
                <td></td>
                <td>
                    <input type="submit" value="注册"  onclick="return checkdata()">
                    <input type="reset" value="重置" >
                </td>
            </tr>
        </table>
    </form>
</body>
</html>