struts应用

标签：ssh

      <servlet>
         <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>
          <init-param>
              <param-name>debug</param-name>
              <param-value>2</param-value>
          </init-param>
          <init-param>
              <param-name>detail</param-name>
              <param-value>2</param-value>
          </init-param>
          <load-on-startup>2</load-on-startup>
      </servlet>
      
      <!-- Standard Action Servlet Mapping -->
      <servlet-mapping>
          <servlet-name>action</servlet-name>
          <url-pattern>*.do</url-pattern>
      </servlet-mapping>

        /**
         * 登陆ActionForm，负责表单数据收集
         * 其继承：org.apache.struts.action.ActionForm
         * 注意：表单的属性必须和ActionForm中的get和set的属性一致
         */
        public class LoginActionForm extends ActionForm {
            private String userName;
            private String password;

            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;
            } 
        }

        /**
         * 登陆Action
         * 负责取得表单数据、调用业务逻辑、返回转向信息
         */
        public class LoginAction extends Action {
            @Override
            public ActionForward execute(ActionMapping mapping, ActionForm form,
                    HttpServletRequest request, HttpServletResponse response)
                    throws Exception {
                //接收前台传递过来的数据
                LoginActionForm laf=(LoginActionForm)form;
                //获取表单数据
                String userName=laf.getUserName();
                String password=laf.getPassword();
               
                UserManager userManager=new UserManager();
                try{
                      //调用业务处理对象的登陆方法
                    userManager.login(userName, password);
                      //将数据设置到request中，以在前台jsp中获取显示
                    request.setAttribute("userName", userName);
                      //成功则转向到成功界面
                    return mapping.findForward("success");
                }catch(Exception e){
                    e.printStackTrace();
                }
                //失败则转向到失败界面
                return mapping.findForward("error");
            }
        }

     <struts-config>
        <form-beans >
            <form-bean name="loginForm" type="com.tgb.struts.LoginActionForm" />
        </form-beans>
        
        <action-mappings>
            <action path="/login" type="com.tgb.struts.LoginAction"
                    name="loginForm" 
                    scope="request">
                <forward name="success" path="/login_success.jsp" />
                <forward name="error" path="/login_error.jsp" />
            </action>
        </action-mappings>
    </struts-config>  

解释：上面form-bean配置的就是第二步建立的LoginActionForm对象

    Action配置的就是第二步建立的LoginAction对象，在其属性name指向的就是配置的form-bean。

     forward就是要转向的前端页面

     <form action="login.do" method="post">
        <input type="text" name="userName" ><br>
        <input type="text" name="password"><br>
        <input type="submit" value="登陆">
    </form>

struts应用

标签：ssh

原文地址：http://blog.csdn.net/u010927139/article/details/48058159