Spring MVC

1、导包 下载相关的包导入，下载链接：http://download.csdn.net/detail/gufengpiaoyi/9285145

2、WebContent/WEB-INF下新建conf文件夹，新建applicationContext.xml,applicationContext-bizc.xml,applicationContext-dao.xml三个xml文件：

applicationContext.xml:

<?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:context="http://www.springframework.org/schema/context"    xmlns:mvc="http://www.springframework.org/schema/mvc"      xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">              <context:component-scan  base-package="com.controller" />  <mvc:annotation-driven />    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping" />  <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">      <property name="messageConverters">          <list>              <bean class="org.springframework.http.converter.StringHttpMessageConverter">                  <property name="supportedMediaTypes">                      <list>                          <value>text/html; charset=UTF-8</value>                          <value>application/json;charset=UTF-8</value>                      </list>                  </property>              </bean>              <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">                  <property name="supportedMediaTypes">                      <list>                          <value>text/html; charset=UTF-8</value>                          <value>application/json;charset=UTF-8</value>                      </list>                  </property>              </bean>          </list>      </property>  </bean>    </beans>

applicationContext-bizc.xml:

<?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: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/context http://www.springframework.org/schema/context/spring-context.xsd">          <bean id="dataBizc" class="com.bizc.impl.DataBizcImpl"><property name="dataDao" ref="dataDao"></property></bean></beans>

applicationContext-dao.xml:

<?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: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/context http://www.springframework.org/schema/context/spring-context.xsd">          <bean id="dataDao" class="com.dao.impl.DataDaoImpl" /></beans>

3、src文件夹下新建六个包：com.bizc方法层，com.bizc.impl方法实现层（由com.dao.impl实现），com.dao数据库方法层（根据bizc写），com.dao.impl数据库方法实现层，com.contoller控制层，com.po实例层。

controller：

@Controller@RequestMapping(value= "/getdata",method=RequestMethod.POST)public class BDController {@Autowiredprivate IDataBizc dataBizc;@RequestMapping(value="/getminutedata")public @ResponseBody WrappedResult getMinuteData(@RequestParam String ItemNO){try {return WrappedResult.successWrapedResult(dataBizc.getMinuteData(ItemNO));} catch (ClassNotFoundException e) {return WrappedResult.failedWrappedResult("数据库驱动类加载错误！");} catch (SQLException e) {return WrappedResult.failedWrappedResult("数据库查询失败！");}}@RequestMapping(value="/getrealtimedata")public @ResponseBody WrappedResult getRealTimeDataNew(){try {return WrappedResult.successWrapedResult(dataBizc.getRealTimeDataNew());} catch (ClassNotFoundException e) {return WrappedResult.failedWrappedResult("数据库驱动类加载错误！");} catch (SQLException e) {return WrappedResult.failedWrappedResult("数据库查询失败！");}}@RequestMapping(value="/getbatterydata")public @ResponseBody WrappedResult getBatteryData(){try {return WrappedResult.successWrapedResult(dataBizc.getBatteryData());} catch (ClassNotFoundException e) {return WrappedResult.failedWrappedResult("数据库驱动类加载错误！");} catch (SQLException e) {return WrappedResult.failedWrappedResult("数据库查询失败！");}}public IDataBizc getDataBizc() {return dataBizc;}public void setDataBizc(IDataBizc dataBizc) {this.dataBizc = dataBizc;}}

返回json标准化：

public class WrappedResult {public WrappedResult() {}/** * 是否成功 */private boolean successful;/** * 业务方法返回数据 */private Object resultValue;/** * 提示信息 */private String resultHint;/** * 成功调用返回包装结果 *  * @param data 要展示的数据{"items":[{},{}]} */public static WrappedResult successWrapedResult(Object data) {return new WrappedResult(true, data, "");}/** * 失败调用返回包装结果 *  * @param exMessage *            异常信息 */public static WrappedResult failedWrappedResult(String exMessage) {return new WrappedResult(false, "", exMessage);}/** *  * @param isSuccess 请求是否成功 * @param data 请求返回的数据 * @param tip 请求失败时显示异常信息 */public WrappedResult(boolean isSuccess, Object data, String tip) {super();this.successful = isSuccess;this.resultValue = data;this.resultHint = tip;}public boolean isSuccessful() {return successful;}public void setSuccessful(boolean successful) {this.successful = successful;}public Object getResultValue() {return resultValue;}public void setResultValue(Object resultValue) {this.resultValue = resultValue;}public String getResultHint() {return resultHint;}public void setResultHint(String resultHint) {this.resultHint = resultHint;}}

4、配置web.xml

<?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>BdForestGuard</display-name>  <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list>    <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>  /WEB-INF/conf/applicationContext-*.xml  </param-value>  </context-param>    <servlet>    <servlet-name>rest</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <init-param>      <param-name>contextConfigLocation</param-name>      <param-value>/WEB-INF/conf/applicationContext.xml</param-value>    </init-param>    <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>    <servlet-name>rest</servlet-name>    <url-pattern>/*</url-pattern>  </servlet-mapping></web-app>