Struts2---自定义拦截器

一:UserIfo

  1.  
    public class UserInfo {
  2.  
    private String username;
  3.  
    private String password;
  4.  
     
  5.  
    public String getUsername() {
  6.  
    return username;
  7.  
    }
  8.  
     
  9.  
    public void setUsername(String username) {
  10.  
    this.username = username;
  11.  
    }
  12.  
     
  13.  
    public String getPassword() {
  14.  
    return password;
  15.  
    }
  16.  
     
  17.  
    public void setPassword(String password) {
  18.  
    this.password = password;
  19.  
    }
  20.  
    }

 

 

二:LoginAction

 

  1.  
    public class LoginAction implements Action {
  2.  
    private UserInfo user;
  3.  
     
  4.  
    public String execute() throws Exception {
  5.  
    Map<String, Object> session = ActionContext.getContext().getSession();
  6.  
    if (user != null) {
  7.  
    if (user.getUsername().equals("1") && user.getUsername().equals("1")) {
  8.  
    session.put("uname", user.getUsername());
  9.  
    return SUCCESS;
  10.  
    } else {
  11.  
    return LOGIN;
  12.  
    }
  13.  
    } else {
  14.  
    if (session != null && session.get("uname") != null) {
  15.  
    return "success";
  16.  
    } else {
  17.  
    System.out.println("自定义代码");
  18.  
    return "login";
  19.  
    }
  20.  
    }
  21.  
    }
  22.  
     
  23.  
     
  24.  
    public UserInfo getUser() {
  25.  
    return user;
  26.  
    }
  27.  
     
  28.  
    public void setUser(UserInfo user) {
  29.  
    this.user = user;
  30.  
    }
  31.  
    }
  32.  
     

三:BookAction

 

 

  1.  
    public class BookAction implements Action {
  2.  
    public String execute() throws Exception {
  3.  
    System.out.println("bookaction");
  4.  
    return SUCCESS;
  5.  
    }
  6.  
    }
  7.  
     


四:MyInterceptor

  1.  
    public class MyInterceptor implements Interceptor {
  2.  
    public void destroy() {
  3.  
     
  4.  
    }
  5.  
     
  6.  
    public void init() {
  7.  
    System.out.println("拦截器已经成功初始化.....");
  8.  
    }
  9.  
     
  10.  
    public String intercept(ActionInvocation invocation) throws Exception {
  11.  
    System.out.println("对象" + invocation);
  12.  
    Object action = invocation.getAction();
  13.  
    System.out.println("action===========" + action);
  14.  
    String value;
  15.  
    Map<String, Object> session = ActionContext.getContext().getSession();
  16.  
    Object name = session.get("uname");
  17.  
    String actionName = invocation.getProxy().getActionName();
  18.  
    invocation.getProxy().getNamespace();
  19.  
    System.out.println("actionNmae=============" + actionName);
  20.  
    if (actionName.equals("login")) {
  21.  
    System.out.println("================");
  22.  
    value = invocation.invoke();
  23.  
    } else if (name != null) {
  24.  
    value = invocation.invoke();
  25.  
    String method = invocation.getProxy().getMethod();
  26.  
    System.out.println("方法名=========" + method);
  27.  
    } else {
  28.  
    value = "login";
  29.  
    }
  30.  
    System.out.println("逻辑视图名====" + value);
  31.  
    return value;
  32.  
    }
  33.  
    }
  34.  
     


五:struts-day07-02.xml

  1.  
    <struts>
  2.  
    <constant name="struts.devMode" value="true"></constant>
  3.  
    <package name="day07" namespace="/" extends="default">
  4.  
    <action name="login" class="cn.day07interceptor02.action.LoginAction">
  5.  
    <result name="success">/WEB-INF/myinter/success.jsp</result>
  6.  
    <result name="login">/WEB-INF/myinter/login.jsp</result>
  7.  
    </action>
  8.  
    <action name="book" class="cn.day07interceptor02.action.BookAction">
  9.  
    <result name="success">/WEB-INF/myinter/booksuccess.jsp</result>
  10.  
    </action>
  11.  
    </package>
  12.  
    </struts>

 


 

六:struts.ml

 

  1.  
    <struts>
  2.  
    <constant name="struts.devMode" value="true"></constant>
  3.  
    <package name="day07" namespace="/" extends="default">
  4.  
    <action name="login" class="cn.day07interceptor02.action.LoginAction">
  5.  
    <result name="success">/WEB-INF/myinter/success.jsp</result>
  6.  
    <result name="login">/WEB-INF/myinter/login.jsp</result>
  7.  
    </action>
  8.  
    <action name="book" class="cn.day07interceptor02.action.BookAction">
  9.  
    <result name="success">/WEB-INF/myinter/booksuccess.jsp</result>
  10.  
    </action>
  11.  
    </package>
  12.  
    </struts>
  13.  
    <struts>
  14.  
    <!--支持动态方法调用-->
  15.  
    <constant name="struts.enable.DynamicMethodInvocation" value="false"/>
  16.  
    <!--修改struts.xml 不用重启容器-->
  17.  
    <constant name="struts.devMode" value="true"/>
  18.  
    <package name="default" namespace="/" extends="struts-default">
  19.  
    <interceptors>
  20.  
    <interceptor name="myInter" class="cn.happy.day07interceptor.interceptor.MyInterceptor"></interceptor>
  21.  
    <interceptor-stack name="myStack">
  22.  
    <interceptor-ref name="defaultStack"></interceptor-ref>
  23.  
    <interceptor-ref name="myInter"></interceptor-ref>
  24.  
    </interceptor-stack>
  25.  
    </interceptors>
  26.  
    <default-interceptor-ref name="myStack"></default-interceptor-ref>
  27.  
    <default-action-ref name="first"></default-action-ref>
  28.  
    <action name="first"></action>
  29.  
    <!--<global-results>
  30.  
    <result name="error">/WEB-INF/jsp/error.jsp</result>
  31.  
    </global-results>-->
  32.  
    <!-- <global-exception-mappings>
  33.  
    <exception-mapping exception="java.lang.Exception" result="error"></exception-mapping>
  34.  
    </global-exception-mappings>-->
  35.  
    <action name="helloWord" class="cn.day01.action.TestAction01">
  36.  
    <result name="success">day01jsp/first.jsp</result>
  37.  
    </action>
  38.  
    </package>
  39.  
    <!--<include file="struts-day03.xml"></include>
  40.  
    <include file="struts-day05.xml"></include>
  41.  
    <include file="struts-day06.xml"></include>
  42.  
    <include file="struts-day04.xml"></include>
  43.  
    <include file="struts-day07.xml"></include>
  44.  
    <include file="struts-day08.xml"></include>-->
  45.  
    <include file="struts-day07-02.xml"></include>
  46.  
    </struts>
七:login.jsp

 

 

  1.  
    <body>
  2.  
    <h2>登录</h2>
  3.  
    <s:form method="POST" action="login">
  4.  
    请输入用户名: <s:textfield name="user.username"></s:textfield> <br/>
  5.  
    <s:textfield name="user.password"></s:textfield><br/>
  6.  
    <s:submit value="登陆"></s:submit>
  7.  
    </s:form>
  8.  
posted @ 2021-01-04 18:48  气泡水  阅读(84)  评论(0编辑  收藏  举报