struts2是由webwork&＃43;struts1得来的。很多特性与webwork相似&＃xff0c;但与struts1有很大的区别.
我以前没搞过什么webwork&＃xff08;http://baike.baidu.com/view/25660.htm&＃xff09;所以对struts2的机制还很莫生。
运行环境&＃xff1a;
servlet contant : apache-tomcat-6.0.20
IDE: myeclipse7.0 (配套的eclipse为3.4)
JDK: jdk1.6.0_03
---------------------------
1. 创建web项目 struts2Test
1.1 在WEB-INF下的lib中拷入struts2的jar包。会在Referenced Libraries中显示。
lib中不会显示&＃xff0c;当程序发布后在tomcat中会显示这会jar包.
1.2 项目的目录结构。如下图&＃xff1a;
2. 在WebRoot下面建3个jsp文件.
2.1 login.jsp
Code
<%&＃64; page language&＃61;"java" import&＃61;"java.util.*" pageEncoding&＃61;"GBK"%>
<%&＃64; taglib prefix&＃61;"s" uri&＃61;"/struts-tags"%>
<%
String path &＃61; request.getContextPath();
String basePath &＃61; request.getScheme()&＃43;"://"&＃43;request.getServerName()&＃43;":"&＃43;request.getServerPort()&＃43;path&＃43;"/";
%>
DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href&＃61;"<%&＃61;basePath%>">
<title>My JSP &＃39;login.jsp&＃39; starting pagetitle>
<meta http-equiv&＃61;"pragma" content&＃61;"no-cache">
<meta http-equiv&＃61;"cache-control" content&＃61;"no-cache">
<meta http-equiv&＃61;"expires" content&＃61;"0">
<meta http-equiv&＃61;"keywords" content&＃61;"keyword1,keyword2,keyword3">
<meta http-equiv&＃61;"description" content&＃61;"This is my page">
head>
<body>
<s:form name&＃61;"pageform" action&＃61;"login" namespace&＃61;"/" method&＃61;"post">
<s:textfield name&＃61;"username" label&＃61;"用户名" />
<s:password name&＃61;"password" label&＃61;"密码aa" />
<s:submit value&＃61;"登录" />
s:form>
body>
html> 2.2 success.jsp 内容随便去写吧。
2.3 failed.jsp
3. 修改WEB-INF下面的web.xml文件
Code
xml version&＃61;"1.0" encoding&＃61;"UTF-8"?>
<web-app version&＃61;"2.4"
xmlns&＃61;"http://java.sun.com/xml/ns/j2ee"
xmlns:xsi&＃61;"http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation&＃61;"http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<filter>
<filter-name>struts2filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcherfilter-class>
filter>
<filter-mapping>
<filter-name>struts2filter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<welcome-file-list>
<welcome-file>index.jspwelcome-file>
welcome-file-list>
web-app>
index.jsp
这个可以不写
4. 在src下建立action类
在src下建立包com.web 然后建立struts2Action.java类
Code
package com.web;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class struts2Action extends ActionSupport {
private String username;
private String password;
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password &＃61; password;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username &＃61; username;
}
// &＃64;Override
public String execute() throws Exception {
if (this.getUsername().equals("wj")
&& this.getPassword().equals("1234")) {
ActionContext.getContext().getSession().put("user",
this.getUsername());
return "success";
} else {
return "error";
}
}
// &＃64;Override
public void validate() {
if (this.getUsername() &＃61;&＃61; null || this.getUsername().trim().equals("")) {
addFieldError("username", "用户名错误&＃xff01;");
}
if (this.getPassword() &＃61;&＃61; null || this.getPassword().trim().equals("")) {
addFieldError("password", "password 错误&＃xff01;");
}
}
}
5. 在src下建立 struts.xml文件
Code
xml version&＃61;"1.0" encoding&＃61;"UTF-8" ?>
DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name&＃61;"login" namespace&＃61;"/" extends&＃61;"struts-default">
<action name&＃61;"login" class&＃61;"com.web.struts2Action">
<result name&＃61;"error">failed.jspresult>
<result name&＃61;"success">success.jspresult>
<result name&＃61;"input">login.jspresult>
action>
package>
struts>6. 发布运行
6.1 在如&＃xff1a; D:\tomcat\apache-tomcat-6.0.20\conf 的下面有个server.xml 修改成
docBase为项目所在的位置 reloadable为true时不用返复重启tomcat 一般编写代码时写成true 发布后写成false以保存程序运行的稳定性.
我以前没搞过什么webwork&＃xff08;http://baike.baidu.com/view/25660.htm&＃xff09;所以对struts2的机制还很莫生。
运行环境&＃xff1a;
servlet contant : apache-tomcat-6.0.20
IDE: myeclipse7.0 (配套的eclipse为3.4)
JDK: jdk1.6.0_03
---------------------------
1. 创建web项目 struts2Test
1.1 在WEB-INF下的lib中拷入struts2的jar包。会在Referenced Libraries中显示。
lib中不会显示&＃xff0c;当程序发布后在tomcat中会显示这会jar包.
1.2 项目的目录结构。如下图&＃xff1a;
2. 在WebRoot下面建3个jsp文件.
2.1 login.jsp
Code<%&＃64; page language&＃61;"java" import&＃61;"java.util.*" pageEncoding&＃61;"GBK"%>
<%&＃64; taglib prefix&＃61;"s" uri&＃61;"/struts-tags"%>
<%
String path &＃61; request.getContextPath();
String basePath &＃61; request.getScheme()&＃43;"://"&＃43;request.getServerName()&＃43;":"&＃43;request.getServerPort()&＃43;path&＃43;"/";
%>
DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href&＃61;"<%&＃61;basePath%>">
<title>My JSP &＃39;login.jsp&＃39; starting pagetitle>
<meta http-equiv&＃61;"pragma" content&＃61;"no-cache">
<meta http-equiv&＃61;"cache-control" content&＃61;"no-cache">
<meta http-equiv&＃61;"expires" content&＃61;"0">
<meta http-equiv&＃61;"keywords" content&＃61;"keyword1,keyword2,keyword3">
<meta http-equiv&＃61;"description" content&＃61;"This is my page">
head>
<body>
<s:form name&＃61;"pageform" action&＃61;"login" namespace&＃61;"/" method&＃61;"post">
<s:textfield name&＃61;"username" label&＃61;"用户名" />
<s:password name&＃61;"password" label&＃61;"密码aa" />
<s:submit value&＃61;"登录" />
s:form>
body>
html>
2.3 failed.jsp
3. 修改WEB-INF下面的web.xml文件
Codexml version&＃61;"1.0" encoding&＃61;"UTF-8"?>
<web-app version&＃61;"2.4"
xmlns&＃61;"http://java.sun.com/xml/ns/j2ee"
xmlns:xsi&＃61;"http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation&＃61;"http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<filter>
<filter-name>struts2filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcherfilter-class>
filter>
<filter-mapping>
<filter-name>struts2filter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<welcome-file-list>
<welcome-file>index.jspwelcome-file>
welcome-file-list>
web-app>
这个可以不写
4. 在src下建立action类
在src下建立包com.web 然后建立struts2Action.java类
Codepackage com.web;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class struts2Action extends ActionSupport {
private String username;
private String password;
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password &＃61; password;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username &＃61; username;
}
// &＃64;Override
public String execute() throws Exception {
if (this.getUsername().equals("wj")
&& this.getPassword().equals("1234")) {
ActionContext.getContext().getSession().put("user",
this.getUsername());
return "success";
} else {
return "error";
}
}
// &＃64;Override
public void validate() {
if (this.getUsername() &＃61;&＃61; null || this.getUsername().trim().equals("")) {
addFieldError("username", "用户名错误&＃xff01;");
}
if (this.getPassword() &＃61;&＃61; null || this.getPassword().trim().equals("")) {
addFieldError("password", "password 错误&＃xff01;");
}
}
}
Codexml version&＃61;"1.0" encoding&＃61;"UTF-8" ?>
DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name&＃61;"login" namespace&＃61;"/" extends&＃61;"struts-default">
<action name&＃61;"login" class&＃61;"com.web.struts2Action">
<result name&＃61;"error">failed.jspresult>
<result name&＃61;"success">success.jspresult>
<result name&＃61;"input">login.jspresult>
action>
package>
struts>
6.1 在如&＃xff1a; D:\tomcat\apache-tomcat-6.0.20\conf 的下面有个server.xml 修改成
docBase为项目所在的位置 reloadable为true时不用返复重启tomcat 一般编写代码时写成true 发布后写成false以保存程序运行的稳定性.
<Context path&＃61;"/struts2Test" docBase&＃61;"D:\project\java_workspace\struts2Test\WebRoot" reloadable&＃61;"true"/>
-->
Host>
Engine>
Service>
Server>
6.2 http://localhost:8088/struts2Test/login.jsp 点按钮提交后会变成 http://localhost:8088/struts2Test/login.action-->
Host>
Engine>
Service>
Server>
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