自己编写的一个用struts+spring实现的登陆实例[转]
一、运行环境
1、eclipse-SDK-3.2
2、MyEclipse GA5.0
3、apache-tomcat-5.5.20
4、Strust1.2
5、Spring1.2
二、该工程所需文件
1、index.jsp
2、login.jsp
3、reinput_blank.jsp
4、reinput_error.jsp
5、success.jsp
6、LoginActio.java
7、LoginForm.java
8、struts-config.xml
9、applicationContext.xml
三、步骤
1、建工程
创建一个名为Welcome_SS的Web Project
File -> New -> Project -> Web Project , “next” Project Name：”Welcome_SS” ,“finish”;
2、导入struts包
选择Welcome_SS工程，右键->Myeclipse (或选菜单栏上Myeclipse) -> Add struts Capabilities……,选择struts1.2，然后finish;
3、导入spring包
选择Welcome_SS工程，右键->Myeclipse (或选菜单栏上Myeclipse) -> Add spring Capabilities……,在默认基础上，再选择Spring 1.2 AOP Libraries - <MyEclipse-Library>和Spring 1.2 Web Libraries - <MyEclipse-Library>，然后finish;
(为什么要选这两个，我也还没有弄清楚)
注：可能还要在lib文件夹下加几个spring包，
spring.jar,
spring-1.2.6.jar,
spring-aop.jar,
spring-beans.jar,
spring-context.jar,
spring-core.jar,
spring-orm.jar,
spring-remoting.jar,
spring-support.jar,
spring-web.jar,
spring-webmvc.jar
4、编写代码（页面及其所需的类）
Ø index.jsp
选择Welcome_SS工程下的WebRoot -> New -> JSP，取名为index.jsp，Finish;
输入以下代码
2 <! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" >
3 < html >
4 < head >
5 <!-- <link rel="stylesheet" type="text/css" href="./styles.css"> -->
6 </ head >
7 < body >< div align ="center" >
8 Welcome here! < br > . < a href ="login.jsp" > sign in </ a ></ div >
9 </ body >
10 </ html >
11
Ø login.jsp
选择Welcome_SS工程下的WebRoot -> New -> JSP，取名为login.jsp，Finish;
输入以下代码
2 <% @ page import = " java.util.*,java.sql.*,java.text.*,java.io.* " %>
3
4 < html >
5 < body >
6 < div align ="center" >< form name ="form1" method ="post" action ="login.do" >
7 Welcome Here! < br >< br >
8 username: < input type ="text" name ="username" >< br >
9 password: < input type ="text" name ="password" >< br >
10 < input type ="submit" name ="submit1" value ="submit" >
11 < input type ="reset" name ="submit2" value ="reset" onclick ="deleteAllMessage()" >< br >
12 </ form ></ div >
13 </ body >
14 </ html >
Ø reinput_blank.jsp
选择Welcome_SS工程下的WebRoot -> New -> JSP，取名为reinput_blank.jsp，Finish;
输入以下代码
2
3 <! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" >
4 < html >
5 < body >
6 < div align ="center" >< form name ="form1" method ="post" action ="login.do" >< font color ="#ff0000" > *用户名和密码都不能为空！ </ font >< br >< br >
7 username: < input type ="text" name ="username" > < br >
8 password: < input type ="text" name ="password" > < br >
9 < input type ="submit" name ="submit1" value ="submit" >
10 < input type ="reset" name ="submit2" value ="reset" onclick ="deleteAllMessage()" >
11 </ form ></ div >
12 </ body >
13 </ html >
14
Ø reinput_error.jsp
选择Welcome_SS工程下的WebRoot -> New -> JSP，取名为reinput_error.jsp，Finish;
输入以下代码
2
3 <! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" >
4 < html >
5 < body >
6 < div align ="center" >< form name ="form1" method ="post" action ="login.do" >< font color ="#ff0000" > *用户名或密码不正确！ </ font >< br >< br >
7 username: < input type ="text" name ="username" > < br >
8 password: < input type ="text" name ="password" > < br >
9 < input type ="submit" name ="submit1" value ="submit" >
10 < input type ="reset" name ="submit2" value ="reset" onclick ="deleteAllMessage()" >
11 </ form ></ div >
12 </ body >
13 </ html >
14
Ø success.jsp
选择Welcome_SS工程下的WebRoot -> New -> JSP，取名为success.jsp，Finish;
输入以下代码2
3 <! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" >
4 < html >
5 < head >
6 <!-- <link rel="stylesheet" type="text/css" href="./styles.css"> -->
7 </ head >
8 < body >
9 <% = request.getAttribute( " message " ) %> ! < br >
10 . < a href ="login.jsp" > sign in </ a >< br >
11 . < a href ="index.jsp" > sign out </ a >
12 </ body >
13 </ html >
14
15
选择Welcome_SS工程下的src -> com -> yourcompany -> struts下,New->files :action,再在这个文件夹下New->Java，取名为LoginAction.java，Finish;
输入以下代码
2 package com.yourcompany.struts.action;
3
4 import java.util.Locale;
5
6 import javax.servlet.http.HttpServletRequest;
7 import javax.servlet.http.HttpServletResponse;
8 import javax.servlet.http.HttpSession;
9
10 import org.apache.struts.action.Action;
11 import org.apache.struts.action.ActionForm;
12 import org.apache.struts.action.ActionForward;
13 import org.apache.struts.action.ActionMapping;
14 import org.apache.struts.util.MessageResources;
15
16 import com.yourcompany.struts.form.LoginForm;
17
18 public class LoginAction extends Action {
19
20 private String message;
21
22 public String getMessage() {
23 return message;
24 }
25
26 public void setMessage(String message) {
27 this .message = message;
28 }
29
30 public ActionForward execute(ActionMapping mapping,
31 ActionForm form,
32 HttpServletRequest request,
33 HttpServletResponse response)
34 LoginForm userform = (LoginForm) form;
35 if (userform.getUsername().equals( "" ) || (userform.getPassword().equals( "" ))){
36 return mapping.findForward( " reinput_blank " );
37 }
38 else if (userform.getUsername().equals( " success " ) && (userform.getPassword().equals( " success " ))){
39 request.setAttribute( " message " ,getMessage() + userform.getUsername());
40 return mapping.findForward( " success " );
41 }
42 else {
43 return mapping.findForward( " reinput_error " );
44 }
45 }
46 }
47
Ø LoginForm.jsp
选择Welcome_SS工程下的src -> com -> yourcompany -> struts下,New->files :form,再在这个文件夹下New->Java，取名为LoginAction.java，Finish;
输入以下代码
2 package com.yourcompany.struts.form;
3
4 import javax.servlet.http.HttpServletRequest;
5 import org.apache.struts.action.ActionErrors;
6 import org.apache.struts.action.ActionForm;
7 import org.apache.struts.action.ActionMapping;
8
9 public class LoginForm extends ActionForm {
10
11 /** username property */
12 private String username;
13 private String password;
14 public String getPassword() {
15 return password;
16 }
17 public void setPassword(String password) {
18 this .password = password;
19 }
20 public String getUsername() {
21 return username;
22 }
23 public void setUsername(String username) {
24 this .username = username;
25 }
26 }
5、根据前一步的代码，进行配置文件的编写（struts-config.xml和applicationContext.xml）
选择Welcome_SS工程下的WebRoot -> WEB-INF -> struts-config.xml
输入下面代码：
2 <! DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd" >
3
4 < struts-config >
5 < data-sources />
6 < form-beans >
7 < form-bean name ="loginForm" type ="com.yourcompany.struts.form.LoginForm" />
8 </ form-beans >
9
10 < global-exceptions />
11 < global-forwards />
12 < action-mappings >
13 < action
14 attribute ="loginForm"
15 input ="/login.jsp"
16 name ="loginForm"
17 path ="/login"
18 scope ="request"
19 type ="org.springframework.web.struts.DelegatingActionProxy" >
20 < forward name ="success" path ="/success.jsp" />
21 < forward name ="reinput_blank" path ="/reinput_blank.jsp" />
22 < forward name ="reinput_error" path ="/reinput_error.jsp" />
23 </ action >
24
25 </ action-mappings >
26
27 < message-resources parameter ="com.yourcompany.struts.ApplicationResources" />
28
29 < plug-in className ="org.springframework.web.struts.ContextLoaderPlugIn" >
30 < set-property property ="contextConfigLocation" value ="/WEB-INF/classes/applicationContext.xml" />
31 </ plug-in >
32
33 </ struts-config >
34
35
选择Welcome_SS工程下的src -> applicationContext.xml
输入下面代码：
2 <! DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd" >
3 < beans >
4 < bean name ="/login" class ="com.yourcompany.struts.action.LoginAction" >
5 < property name ="message" >
6 < value > Welcome_ </ value >
7 </ property >
8 </ bean >
9 </ beans >
10
6、Web Service（这里即Tomcat）布署及启动
(全面的可以参照我的另一篇随笔：Myeclipse中Tomcat的两种布署方式)
a.在apache-tomcat-5.5.20"conf下，找到server.xml，打开，在</Host>前面添加一句
<Context path="/wess" debug="0" docBase="C:\Documents and Settings\tt\workspace\Welcome_SS\WebRoot" reloadable="true"></Context>
注：C:\Documents and Settings\tt\workspace\Welcome_SS是该工程的存储路径。
b.在Myeclipse中的工具栏上找到一个像机箱似形状的按钮，点击，则打开服务器Tomcat.
7、运行
在IE 浏览器里输入http://localhost:8080/wess，即可运行！成功登陆的条件是用户名和密码都为success的时候。