每次都会忘记一些东西，反复查找原因，其实struts1很简单，可是不去巩固也很容易忘记并且犯错误。这是一个最简单的登录Demo.
1.建立web工程，引入struts1.2包
2.建package：action和form。
2.1在form下建userform.java
package form; import org.apache.struts.action.ActionForm; public class UserForm extends ActionForm { /** * formBean */ private static final long serialVersionUID = 1L; private String username; private String password; /** * @return the username */ public String getUsername() { return username; } /** * @param username the username to set */ public void setUsername(String username) { this.username = username; } /** * @return the password */ public String getPassword() { return password; } /** * @param password the password to set */ public void setPassword(String password) { this.password = password; } }
2.2在LoginAction.java：
如果账户名为”123“，则登录成功。
package action; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import form.UserForm; public class LoginAction extends Action { /* * (non-Javadoc) * * @see org.apache.struts.action.Action#execute(org.apache.struts.action. * ActionMapping, org.apache.struts.action.ActionForm, * javax.servlet.http.HttpServletRequest, * javax.servlet.http.HttpServletResponse) */ @Override public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { // TODO Auto-generated method stub System.out.println("LoginAction.execute()"); UserForm user = (UserForm) form; System.out.println("name = " + user.getUsername()); if (user.getUsername().equals("123")) { return mapping.findForward("success"); } else { return mapping.findForward("error"); } } }
3.配置文件：
3.1在WEB-INF下建立struts-config.xml
（这一步是关键步骤！学会了action的配置基本就掌握了struts1）
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd"> <struts-config> <form-beans> <form-bean name="userform" type="form.UserForm"/> </form-beans> <action-mappings> <action attribute="userform" path="/login" name="userform" scope="request" type="action.LoginAction" input="/index.jsp" > <forward name="success" path="/WEB-INF/wel.jsp"/> <forward name="error" path="/WEB-INF/error.jsp"/> </action> </action-mappings> </struts-config>
3.2配置web.xml文件：
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <display-name></display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <servlet> <!-- servlet class ?? --> <servlet-name>action</servlet-name> <servlet-class>org.apache.struts.action.ActionServlet</servlet-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/struts-config.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>
3.3新建jsp页面文件
index.jsp (作为input source)
<form action="login.do" method="post"> name: <input type="text" name="username"> <input type="submit" value="submit"> </form>
跳转页面wel.jsp 和error.jsp
<body> This is wel JSP page. <br> hello <%=request.getParameter("username") %> </body>