struts框架设计

╰半夏微凉° 2022-08-10 09:47 119阅读 0赞

/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*搭建一个最基本的struts框架应用\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/  
  
  
配置Struts2框架的开发环境配置步骤如下：  
  
   
1、导入struts2所需要的jar包  
  
2、配置web.xml文件  
  
3、编写action类    
  
4、配置struts.xml文件。  
  
  
  
（1）添加jar包：  
  
commons-fileupload-1.2.2.jar  
  
commons-io-2.0.1.jar  
  
commons-lang-2.5.jar  
  
commons-logging-1.1.1.jar  
  
freemarker-2.3.16.jar  
  
struts-el-1.3.10.jar  
  
ognl-3.0.1.jar  
  
struts2-core-2.2.3.jar  
  
xwork-2.0.4.jar  
  
（2）配置web.xml文件：  
  
<?xml version="1.0" encoding="UTF-8"?>  
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
         xmlns="http://java.sun.com/xml/ns/javaee"  
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app\_2\_5.xsd" id="WebApp\_ID" version="2.5">  
  <display-name>SpringWebTest</display-name>  
  
  
  
  
    <filter>  
        <filter-name>EncodingFilter</filter-name>  
        <filter-class>com.msp.util.FilterDemo</filter-class>  
        <init-param>  
            <param-name>encode</param-name>  
            <param-value>utf-8</param-value>  
        </init-param>  
    </filter>  
    <filter-mapping>  
        <filter-name>EncodingFilter</filter-name>  
        <url-pattern>/\*</url-pattern>  
    </filter-mapping>  
  
  
  
  
<filter>  
    <filter-name>characterEncodingFilter</filter-name>  
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
    <init-param>  
        <param-name>encoding</param-name>  
        <param-value>UTF-8</param-value>  
    </init-param>  
</filter>  
<filter-mapping>  
    <filter-name>characterEncodingFilter</filter-name>  
    <url-pattern>/\*</url-pattern>  
</filter-mapping>  
  
  
  
  
  
<filter>  
      <filter-name>struts2</filter-name>  
      <filter-class>  
          org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter  
      </filter-class>  
  </filter>  
  <filter-mapping>  
      <filter-name>struts2</filter-name>  
      <url-pattern>/\*</url-pattern>  
  </filter-mapping>  
  
  
  
  
    <listener>  
        <listener-class>com.msp.util.MyTimerListener</listener-class>  
    </listener>  
  
  
  
    <session-config>  
       <session-timeout>3000</session-timeout>  
    </session-config>  
  
  
  
  
解决工程编码的问题，统一编码格式UTF-8  
  
/\*\*  
  \*  编码格式过滤器  
  \*  com.msp.util.FilterDemo的编写  
  \*  
  \*/  
  
public class FilterDemo implements Filter\{  
  
    private FilterConfig filterConfig;  
    private String encoding;  
  
    public void destroy() \{  
      filterConfig=null;  
    \}  
  
    public void doFilter(ServletRequest request, ServletResponse response,  
            FilterChain chain) throws IOException, ServletException \{  
           if(encoding!=null)\{  
              request.setCharacterEncoding(encoding);  
              chain.doFilter(request, response);  
           \}  
          
    \}  
  
    public void init(FilterConfig config) throws ServletException \{  
        filterConfig=config;  
        encoding=filterConfig.getInitParameter("encode");  
          
    \}  
      
\}  
  
  
  
/\*\*  
 \*  
 \* 定时器的配置  一般都要实现ServletContextListener接口  
 \* com.msp.util.MyTimerListener  
 \*  
  /  
  
public class MyTimerListener implements ServletContextListener \{  
    private BugXmlTimer  mytimer = new BugXmlTimer  ();  
    public void contextInitialized(ServletContextEvent event) \{  
        mytimer.timerStart();  
    \}  
  
    public void contextDestroyed(ServletContextEvent event) \{  
        mytimer.timerStop();  
    \}  
\}  
  
  
  
  
  
  
（3）编写action类  
  
    新建一个pojo类，继承 ActionSupport  复写其中的execute方法  
  
     public class TestAction extends ActionSupport\{  
  
      
    public String loginAction() throws Exception \{  
        //TODO登录操作  
        return SUCCESS;  
    \}  
      
      
    public String loginOut() throws Exception \{  
        //TODO退出操作  
        return SUCCESS;  
    \}  
    \}  
  
  
  
4）配置struts.xml文件：注意头文件中的数字2.0，它属于版本号  
  
    新建  struts.xml 头文件如下：  
  
<?xml version="1.0" encoding="UTF-8" ?>  
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd">  
<struts>  
  
  <constant name="struts.i18n.encoding" value="utf-8" />//国际化支持  
  
  <package name="struts2" namespace="/" extends="struts-default">  
  
      
   <interceptors>  
    <interceptor name="loginedCheck" class="com.msp.interceptor.LoginedCheckInterceptor"/>  
        <interceptor-stack name="mystack">  
            <interceptor-ref name="loginedCheck" />  
            <interceptor-ref name="defaultStack" />  
        </interceptor-stack>  
   </interceptors>  
     
  
     
   <action name="user\_\*" class="com.msp.struts.UserAction" method="\{1\}">  
    <result name="success">jsp/user/User\_list.jsp</result>  
    <result name="add">jsp/user/User\_add.jsp</result>  
    <result name="update">jsp/user/User\_update.jsp</result>  
    <result name="error">jsp/login.jsp</result>  
    <result name="list" type="redirect">user\_getAllUserlist</result>  
    <interceptor-ref name="mystack" />//拦截器栈的引用  
   </action>     
   
  
  </package>  
  
</struts>