SpringMVC

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<pre code_snippet_id="2534904" snippet_file_name="blog_20170815_1_6905900" name="code" class="java"><h1><a name="t0"></a>SpringMVC的配置文件</h1>  <?xml version="1.0" encoding="UTF-8"?>  <beans xmlns="http://www.springframework.org/schema/beans"         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xmlns:p="http://www.springframework.org/schema/p"         xmlns:mvc="http://www.springframework.org/schema/mvc"         xmlns:context="http://www.springframework.org/schema/context"         xsi:schemaLocation="http://www.springframework.org/schema/beans         http://www.springframework.org/schema/beans/spring-beans.xsd         http://www.springframework.org/schema/mvc         http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd         http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context-3.0.xsd">     <strong>   <!--方式二：使用Tomcat默认的Servlet解决静态资源无法请求的问题--></strong>         <!-- 静态资源无法加载-->      <!--<mvc:default-servlet-handler/>-->        <strong><!--方式三：使用新的方式 resources标签--></strong>      <!--有图片之后注释了之后刷新之后还有  要ctrl+F5图片才没因为把缓存去掉了-->      <!--<mvc:resources  location="img/" mapping="img/**"/>-->        <!--<strong>处理器映射器</strong>  （没反应）-->      <!-- <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>-->        <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">          <!--<property name="mappings">              <props>                  <prop key="hello.do">FirstController</prop>                  <prop key="haha.do">FirstController</prop>              </props>          </property>-->          <property name="urlMap">              <map>                  <entry key="hello.do">                      <value>FirstController</value>                  </entry>                  <entry key="haha.do" value="FirstController"></entry>              </map>          </property>      </bean>     <strong>   <!--注册Hanlder  处理器--></strong>      <bean id="FirstController" class="cn.happy.controller.FirstController"/>     <!-- <bean id="/hello.do" class="cn.happy.controller.FirstController"/>-->  <strong>      <!--视图解析器--></strong>      <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">          <property name="prefix" value="/WEB-INF/"></property>          <property name="suffix" value=".jsp"></property>      </bean>      </beans>    </pre><br>  <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>  <h1><a name="t1"></a>web.xml配置</h1>  <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" ><web-app> <display-name>Archetype Created Web Application</display-name>  <strong><!--核心控制器的配置 DispatcherServlet--></strong> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc-servlet-hander.xml</param-value>   </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <strong>  <!--方式一：使用Tomcat默认的Servlet解决静态资源无法请求的问题--></strong> <!--<servlet-mapping> <servlet-name>default</servlet-name> <url-pattern>*.jpg</url-pattern> </servlet-mapping>--></web-app>  <pre></pre>  <pre code_snippet_id="2534904" snippet_file_name="blog_20170815_2_3001422" name="code" class="java"><pre code_snippet_id="2534904" snippet_file_name="blog_20170815_2_3001422" name="code" class="java"><h1><a name="t2"></a>实现Controller接口</h1>  public class FirstController implements Controller{      public ModelAndView handleRequest(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception {         ModelAndView model=new ModelAndView();         model.addObject("uname","你是小仙女吗？ 回答：是呀，哈哈哈哈");         //model.setViewName("/WEB-INF/zxy.jsp");          model.setViewName("zxy");         return model;      }  }</pre><br>  <br>  <pre></pre>  <p><br>  </p>  <p></p><pre code_snippet_id="2534904" snippet_file_name="blog_20170815_3_4811566" name="code" class="java"><h1><a name="t3"></a>继承AbstractController</h1>  public class SecondController extends AbstractController {        protected ModelAndView handleRequestInternal(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception {          ModelAndView model=new ModelAndView();          model.addObject("uname","你是小仙女吗？ 回答：是呀，哈哈哈哈");          model.setViewName("zxy");          return model;      }  }</pre><pre code_snippet_id="2534904" snippet_file_name="blog_20170815_4_8781300" name="code" class="java"><strong>配置2  继承的配置文件</strong><pre code_snippet_id="2534904" snippet_file_name="blog_20170815_4_8781300" name="code" class="java">JSP页面      <%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>  <html>  <head>      <title>Title</title>  </head>  <body>  你是非常棒的，啦啦啦啦啦啦<br/>  ${uname}  <img src="${pageContext.request.contextPath}/img/psb.jpg"/>  </body>  </html>  </pre><br>  <?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/context   http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> <property name="urlMap"> <map> <entry key="hello.do"> <value>SecondController</value> </entry> </map> </property>   </bean> <!--注册Hanlder 处理器--> <bean id="SecondController" class="cn.happy.controller.SecondController"> <property name="supportedMethods"> <set> <value>POST</value> <value>GET</value> </set> </property> </bean> <!--视图解析器--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">   <property name="prefix" value="/WEB-INF/"></property> <property name="suffix" value=".jsp"></property> </bean></beans><p></p>  <pre></pre>  <br>  <p></p>  <p><br>  </p>  <br>  <br>       </pre></pre>
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