<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <!-- struts2的action必须放在一个指定的包空间下定义 --> <package name="default" extends="struts-default"> <!-- 定义处理请求URL为login.action的Action --> <action name="login" class="org.qiujy.web.struts.action.LoginAction"> <!-- 定义处理结果字符串和资源之间的映射关系 --> <result name="success">/success.jsp</result> <result name="error">/error.jsp</result> </action> </package> </struts> |
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <!-- struts2的action必须放在一个指定的包空间下定义 --> <package name="qiujy" extends="struts-default"> <!-- 定义处理请求URL为login.action的Action --> <action name="login" class="org.qiujy.web.struts2.action.LoginAction"> <!-- 定义处理结果字符串和资源之间的映射关系 --> <result name="success">/success.jsp</result> <result name="error">/error.jsp</result> </action> </package> <package name="my" extends="struts-default" namespace="/manage"> <!-- 定义处理请求URL为login.action的Action --> <action name="backLogin" class="org.qiujy.web.struts2.action.LoginAction"> <!-- 定义处理结果字符串和资源之间的映射关系 --> <result name="success">/success.jsp</result> <result name="error">/error.jsp</result> </action> </package></struts> |
<struts> <include file="struts-default.xml"/> <include file="struts-user.xml"/> <include file="struts-book.xml"/> <include file="struts-shoppingCart.xml"/> ...... </struts> |
<struts> ...... <constant name="struts.custom.i18n.resources" value="messages"/> </struts> |
package org.qiujy.web.struts2.action; import com.opensymphony.xwork2.ActionSupport; /** *@authorqiujy *@version1.0 */ publicclass LoginAction extends ActionSupport{ private String userName; private String password; private String msg; //结果信息属性 /** *@returnthemsg */ public String getMsg() { returnmsg; } /** *@parammsgthemsgtoset */ publicvoid setMsg(String msg) { this.msg = msg; } /** *@returntheuserName */ public String getUserName() { returnuserName; } /** *@paramuserNametheuserNametoset */ publicvoid setUserName(String userName) { this.userName = userName; } /** *@returnthepassword */ public String getPassword() { returnpassword; } /** *@parampasswordthepasswordtoset */ publicvoid setPassword(String password) { this.password = password; } /** *处理用户请求的excute()方法 *@return结果导航字符串 *@throwsException */ public String execute() throws Exception{ if("test".equals(this.userName) && "test".equals(this.password)){ msg = "登录成功,欢迎" + this.userName; returnthis.SUCCESS; }else{ msg = "登录失败,用户名或密码错"; returnthis.ERROR; } } } |
public String execute() throws Exception{ if("test".equals(this.userName) && "test".equals(this.password)){ msg = "登录成功,欢迎" + this.userName; //获取ActionContext实例,通过它来访问Servlet API ActionContext context = ActionContext.getContext(); //看session中是否已经存放了用户名,如果存放了:说明已经登录了; //否则说明是第一次登录成功 if(null != context.getSession().get("uName")){ msg = this.userName + ":你已经登录过了!!!"; }else{ context.getSession().put("uName", this.userName); } returnthis.SUCCESS; }else{ msg = "登录失败,用户名或密码错"; returnthis.ERROR; } } |
<form method="post" action="userOpt!login.action"> |
package org.qiujy.web.struts2.action; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; /** *@authorqiujy *@version1.0 */ publicclass LoginAction extends ActionSupport{ private String userName; private String password; private String msg; //结果信息属性 /** *@returnthemsg */ public String getMsg() { returnmsg; } /** *@parammsgthemsgtoset */ publicvoid setMsg(String msg) { this.msg = msg; } /** *@returntheuserName */ public String getUserName() { returnuserName; } /** *@paramuserNametheuserNametoset */ publicvoid setUserName(String userName) { this.userName = userName; } /** *@returnthepassword */ public String getPassword() { returnpassword; } /** *@parampasswordthepasswordtoset */ publicvoid setPassword(String password) { this.password = password; } /** *处理用户请求的login()方法 *@return结果导航字符串 *@throwsException */ public String login() throws Exception{ if("test".equals(this.userName) && "test".equals(this.password)){ msg = "登录成功,欢迎" + this.userName; //获取ActionContext实例,通过它来访问Servlet API ActionContext context = ActionContext.getContext(); //看session中是否已经存放了用户名,如果存放了:说明已经登录了; //否则说明是第一次登录成功 if(null != context.getSession().get("uName")){ msg = this.userName + ":你已经登录过了!!!"; }else{ context.getSession().put("uName", this.userName); } returnthis.SUCCESS; }else{ msg = "登录失败,用户名或密码错"; returnthis.ERROR; } } public String regist() throws Exception{ //将用户名,密码添加到数据库中 //... msg = "注册成功。"; returnthis.SUCCESS; } } |
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="my" extends="struts-default" namespace="/manage"> <!-- 定义处理请求URL为login.action的Action --> <action name="userOpt" class="org.qiujy.web.struts2.action.LoginAction"> <!-- 定义处理结果字符串和资源之间的映射关系 --> <result name="success">/success.jsp</result> <result name="error">/error.jsp</result> </action> </package> </struts> |
<%@ page language="java" pageEncoding="UTF-8"%> <html> <head> <title>用户登录页面</title> </head> <body> <h2>用户入口</h2> <hr> <form action="manage/userOpt!login.action" method="post"> <table border="1"> <tr> <td>用户名:</td> <td><input type="text" name="userName"/></td> </tr> <tr> <td>密码:</td> <td><input type="password" name="password"/></td> </tr> <tr> <td colspan="2"> <input type="submit" value=" 确定 "/> </td> </tr> </table> </form> </body> </html> |
<%@ page language="java" pageEncoding="UTF-8"%> <html> <head> <title>用户注册页面</title> </head> <body> <h2>用户注册</h2> <hr> <form action="manage/userOpt!regist.action" method="post"> <table border="1"> <tr> <td>用户名:</td> <td><input type="text" name="userName"/></td> </tr> <tr> <td>密码:</td> <td><input type="password" name="password"/></td> </tr> <tr> <td colspan="2"> <input type="submit" value=" 注册 "/> </td> </tr> </table> </form> </body> </html> |
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="my" extends="struts-default" namespace="/manage"> <action name="userLogin" class="org.qiujy.web.struts2.action.LoginAction" method="login"> <result name="success">/success.jsp</result> <result name="error">/error.jsp</result> </action> <action name="userRegist" class="org.qiujy.web.struts2.action.LoginAction"method="regist"> <result name="success">/success.jsp</result> <result name="error">/error.jsp</result> </action> </package> </struts> |
<action name="user_*" class="org.qiujy.web.struts2.action.UserAction" method="{1}"> <result name="success">/success.jsp</result> <result name="error">/error.jsp</result> </action> |
<global-results> <result name="error">/Error.jsp</result> <result name="invalid.token">/Error.jsp</result> <result name="login" type="redirect-action">Logon!input</result> </global-results> |
名字 | 说明 |
chain | 用来处理Action链 |
dispatcher | 用来转向页面,通常处理JSP,这是默认的结果类型 |
freeMarker | 处理FreeMarker模板 |
httpHeader | 用来控制特殊的Http行为 |
redirect | 重定向到一个URL |
redirect-action | 重定向到一个Action |
stream | 向浏览器发送InputSream对象,通常用来处理文件下载 |
velocity | 处理Velocity模板 |
xslt | 处理XML/XLST模板 |
plaintext | 显示原始文件内容,例如文件源代码 |
tiles | 结合Tile使用 |
private String nextAction; public String getNextAction() { return nextAction; } |
<action name="fragment" class="FragmentAction"> <result name="next" type="redirect-action">${nextAction}</result> </action> |
package org.qiujy.domain; publicclass User { private String userName; private String password; /** *@returntheuserName */ public String getUserName() { returnuserName; } /** *@paramuserNametheuserNametoset */ publicvoid setUserName(String userName) { this.userName = userName; } /** *@returnthepassword */ public String getPassword() { returnpassword; } /** *@parampasswordthepasswordtoset */ publicvoid setPassword(String password) { this.password = password; } } |
package org.qiujy.web.struts2.action; import org.qiujy.domain.User; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; publicclass UserAction extends ActionSupport{ //定义用于封装请求参数的模型对象 private User user = new User(); private String msg; //结果信息属性 /** *@returntheuser */ public User getUser() { returnuser; } /** *@paramusertheusertoset */ publicvoid setUser(User user) { this.user = user; } /** *@returnthemsg */ public String getMsg() { returnmsg; } /** *@parammsgthemsgtoset */ publicvoid setMsg(String msg) { this.msg = msg; } /** *处理用户请求的login()方法 *@return结果导航字符串 *@throwsException */ public String login() throws Exception{ String userName = user.getUserName(); String password = user.getPassword(); if("test".equals(userName) && "test".equals(password)){ msg = "登录成功,欢迎" + userName; //获取ActionContext实例,通过它来访问Servlet API ActionContext context = ActionContext.getContext(); //看session中是否已经存放了用户名,如果存放了:说明已经登录了;否则说明是第一次登录成功 if(null != context.getSession().get("uName")){ msg = userName + ":你已经登录过了!!!"; }else{ context.getSession().put("uName", userName); } returnthis.SUCCESS; }else{ msg = "登录失败,用户名或密码错"; returnthis.ERROR; } } public String regist() throws Exception{ //将用户名,密码添加到数据库中 //... msg = "注册成功。"; returnthis.SUCCESS; } } |
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="my" extends="struts-default" namespace="/manage"> <action name="userOpt" class="org.qiujy.web.struts2.action.UserAction"> <result name="success">/success.jsp</result> <result name="error">/error.jsp</result> </action> </package> </struts> |
<%@ page language="java" pageEncoding="UTF-8"%> <html> <head> <title>用户登录页面</title> </head> <body> <h2>用户入口</h2> <hr> <form action="manage/userOpt!login.action" method="post"> <table border="1"> <tr> <td>用户名:</td> <td><input type="text" name="user.userName"/></td> </tr> <tr> <td>密码:</td> <td><input type="password" name="user.password"/></td> </tr> <tr> <td colspan="2"> <input type="submit" value=" 确定 "/> </td> </tr> </table> </form> </body> </html> |
public String regist() throws Exception{ //将用户名,密码添加到数据库中 //... //msg = "注册成功。"; if(true){ throw new java.sql.SQLException("没有数据库驱动程序"); } return this.SUCCESS; } |
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <package name="my" extends="struts-default" namespace="/manage"> <!-- 定义全局处理结果 --> <global-results> <!-- 逻辑名为sql的结果,映射到/exception.jsp页面 --> <result name="sql">/exception.jsp</result> </global-results> <global-exception-mappings> <!-- 当Action抛出SQLException异常时,转入名为sql的结果 --> <exception-mapping exception="java.sql.SQLException" result="sql"/> </global-exception-mappings> <action name="userOpt" class="org.qiujy.web.struts2.action.UserAction"> <result name="success">/success.jsp</result> <result name="error">/error.jsp</result> </action> </package> </struts> |
<%@ page language="java" pageEncoding="utf-8"%> <%@ taglib uri="/struts-tags" prefix="s" %> <html> <head> <title>异常信息</title> </head> <body> <h2> 出现异常啦 </h2> <hr/> <h3 style="color:red"> <!-- 获得异常对象 --> <s:property value="exception.message"/> </h3> <br/> <!-- 异常堆栈信息 --> <s:property value="exceptionStack"/> </html> |