SpringMVC基础教程

 1 <!-- 配置SpringMVC -->
 2  <servlet>
 3    <servlet-name>springMVC</servlet-name>
 4    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 5    <load-on-startup>1</load-on-startup>
 6  </servlet>
 7  
 8  <servlet-mapping>
 9    <servlet-name>springMVC</servlet-name>
10    <url-pattern>/</url-pattern>
11  </servlet-mapping>

 1 <!-- 配置SpringMVC -->
 2 <servlet>
 3   <servlet-name>springMVC</servlet-name>
 4   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 5   <init-param>
 6         <!-- 加载SpringMVC的xml到 spring的上下文容器中 -->
 7         <param-name>contextConfigLocation</param-name>
 8         <param-value>classpath:applicationContext-servlet.xml</param-value>
 9         </init-param>
10   <load-on-startup>1</load-on-startup>
11  </servlet>
12  
13  <servlet-mapping>
14     <servlet-name>springMVC</servlet-name>
15     <url-pattern>/</url-pattern>
16  </servlet-mapping>

 1 <!-- 根据客户端的不同的请求决定不同的view进行响应, 如 /blog/1.json /blog/1.xml -->
 2  <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
 3      <property name="order" value="1" />
 4      <!-- 在没有扩展名时即: "/blog/1" 时的默认展现形式 -->
 5   <property name="defaultContentType" value="text/html" />
 6   <!-- 是否启用扩展名支持，默认就是true -->
 7   <property name="favorPathExtension" value="true"></property>
 8  
 9   <!-- 设置为true以忽略对Accept Header的支持 -->
10   <property name="ignoreAcceptHeader" value="true" />
11   <!-- 用于开启 /blog/123?format=json 的支持，一旦开启就要加format参数 -->
12   <property name="favorParameter" value="false" />
13  
14   <!-- 扩展名至mimeType的映射,即 /blog.json => application/json -->
15   <property name="mediaTypes">
16    <map>
17     <entry key="xml" value="application/xml" />
18     <entry key="json" value="application/json" />
19    </map>
20   </property>
21  
22   <property name="defaultViews">
23    <list>
24     <!-- for application/json -->
25     <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" />
26    
27     <!-- for application/xml -->
28     <bean class="org.springframework.web.servlet.view.xml.MarshallingView">
29      <property name="marshaller">
30       <bean class="org.springframework.oxm.xstream.XStreamMarshaller" />
31      </property>
32     </bean>
33    </list>
34   </property>
35  </bean>

1 <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
2   <property name="order" value="2" />
3   <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
4   <property name="prefix" value="/"></property>
5   <property name="suffix" value=".jsp"></property>
6  </bean>

 1  @RequestMapping(value="/getById",method=RequestMethod.GET)
 2  public ModelAndView getById(Model model, HttpServletRequest request){
 3  
 4   User user = new User();
 5   user.setUsername("aaa");
 6   user.setPassword("bbb");
 7  
 8   Map<String, Object> map = new HashMap<String, Object>();
 9   map.put("row", user);
10   return new ModelAndView("getById", map);
11  }

 1 <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
 2      <property name="defaultErrorView" value="error500"></property>
 3      <property name="defaultStatusCode" value="500"></property>
 4      <property name="statusCodes">
 5          <props>
 6              <prop key="error500">500</prop> <!-- error.jsp -->
 7              <prop key="error404">404</prop> <!-- error1.jsp -->
 8          </props>
 9      </property>
10      <property name="exceptionMappings">
11          <props>
12              <!-- 这里你可以根据需要定义N多个错误异常转发 -->
13              <!-- 数据库错误(dbError.jsp) -->
14              <prop key="java.sql.SQLException">dbError</prop>
15              <!-- 参数绑定错误(如：必须参数没传递)(bizError.jsp) -->
16              <prop key="org.springframework.web.bind.ServletRequestBindingException">bizError</prop>
17              <!-- 参数错误(bizError.jsp) -->
18              <prop key="java.lang.IllegalArgumentException">bizError</prop>
19              <!-- 参数类型有误(bizError.jsp) -->
20              <prop key="org.springframework.validation.BindException">bizError</prop>
21              <!-- 其他错误为‘未定义错误‘(unknowError.jsp) -->
22              <prop key="java.lang.Exception">unknowError</prop>
23          </props>
24      </property>
25  </bean>

1 <error-page>
2   <error-code>500</error-code>
3   <location>/error500.jsp</location>
4  </error-page>
5  
6  <error-page>
7   <error-code>404</error-code>
8   <location>/error404.jsp</location>
9  </error-page>

 1 <!-- 配置默认的注解映射 -->
 2  <mvc:annotation-driven>
 3      <mvc:message-converters>
 4          <ref bean="stringHttpMessageConverter" />
 5             <ref bean="fastJsonHttpMessageConverter" />
 6      </mvc:message-converters>
 7  </mvc:annotation-driven>
 8  
 9  <bean id="stringHttpMessageConverter" class="org.springframework.http.converter.StringHttpMessageConverter">
10         <!-- 避免出现乱码 -->
11         <property name="supportedMediaTypes">
12             <list>
13                 <value>text/plain;charSet=UTF-8</value>
14             </list>
15         </property>
16     </bean>
17    
18  <bean id="fastJsonHttpMessageConverter" class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
19         <property name="supportedMediaTypes">
20             <list>
21                 <value>application/json;charset=UTF-8</value>
22                 <value>text/html;charset=UTF-8</value><!-- 避免IE出现下载JSON文件的情况 -->
23             </list>
24         </property>
25         <property name="features">
26             <util:list>
27                 <value>WriteMapNullValue</value>
28                 <value>QuoteFieldNames</value>
29                 <value>WriteDateUseDateFormat</value>
30             </util:list>
31         </property>
32     </bean>