SpringMVC 中的各种配置文件和常用注解

Bertha 。 2022-11-17 13:48 132阅读 0赞

## 1、pom.xml ##

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    	<modelVersion>4.0.0</modelVersion>
    	<groupId>com.imooc</groupId>
    	<artifactId>o2o</artifactId>
    	<packaging>war</packaging>
    	<version>0.0.1-SNAPSHOT</version>
    	<name>o2o Maven Webapp</name>
    	<url>http://maven.apache.org</url>
    	<properties>
    		<spring.version>5.1.8.RELEASE</spring.version>
    	</properties>
    	<dependencies>
    		<dependency>
    			<groupId>junit</groupId>
    			<artifactId>junit</artifactId>
    			<version>4.12</version>
    			<scope>test</scope>
    		</dependency>
    		
    		<dependency>
    			<groupId>ch.qos.logback</groupId>
    			<artifactId>logback-classic</artifactId>
    			<version>1.2.3</version>
    		</dependency>
    		
    		
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-core</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-beans</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-context</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-jdbc</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-tx</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-web</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-webmvc</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-test</artifactId>
    			<version>${spring.version}</version>
    			<scope>test</scope>
    		</dependency>
    		
    		<dependency>
    			<groupId>javax.servlet</groupId>
    			<artifactId>javax.servlet-api</artifactId>
    			<version>4.0.1</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>com.fasterxml.jackson.core</groupId>
    			<artifactId>jackson-databind</artifactId>
    			<version>2.9.9</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>commons-collections</groupId>
    			<artifactId>commons-collections</artifactId>
    			<version>3.2.2</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis</artifactId>
    			<version>3.5.1</version>
    		</dependency>
    		<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis-spring</artifactId>
    			<version>2.0.1</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>mysql</groupId>
    			<artifactId>mysql-connector-java</artifactId>
    			<version>8.0.16</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>com.mchange</groupId>
    			<artifactId>c3p0</artifactId>
    			<version>0.9.5.4</version>
    		</dependency>
    
    		
    		
    		<dependency>
    			<groupId>net.coobird</groupId>
    			<artifactId>thumbnailator</artifactId>
    			<version>0.4.8</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>com.github.penggle</groupId>
    			<artifactId>kaptcha</artifactId>
    			<version>2.3.2</version>
    		</dependency>
    		<dependency>
    			<groupId>commons-fileupload</groupId>
    			<artifactId>commons-fileupload</artifactId>
    			<version>1.3.2</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>redis.clients</groupId>
    			<artifactId>jedis</artifactId>
    			<version>2.9.0</version>
    		</dependency>
    	</dependencies>
    	<build>
    		<finalName>o2o</finalName>
    		<plugins>
    			<plugin>
    				
    				<groupId>org.apache.maven.plugins</groupId>
    				<artifactId>maven-compiler-plugin</artifactId>
    				<version>3.6.1</version>
    				<configuration>
    					<source>1.8</source>
    					<target>1.8</target>
    					<encoding>UTF8</encoding>
    				</configuration>
    			</plugin>
    		</plugins>
    	</build>
    </project>

## 2、web.xml ##

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1" metadata-complete="true">
    	<display-name>Archetype Created Web Application</display-name>
    	<welcome-file-list>
    		<welcome-file>aaa.jsp</welcome-file>
    		<welcome-file>index.jsp</welcome-file>
    	</welcome-file-list>
    	<servlet>
    		<servlet-name>Kaptcha</servlet-name>
    		<servlet-class>com.google.code.kaptcha.servlet.KaptchaServlet</servlet-class>
    		
    		<init-param>
    			<param-name>kaptcha.border</param-name>
    			<param-value>no</param-value>
    		</init-param>
    		
    		<init-param>
    			<param-name>kaptcha.textproducer.font.color</param-name>
    			<param-value>red</param-value>
    		</init-param>
    		
    		<init-param>
    			<param-name>kaptcha.image.width</param-name>
    			<param-value>135</param-value>
    		</init-param>
    		
    		<init-param>
    			<param-name>kaptcha.textproducer.char.string</param-name>
    			<param-value>ACDEFHKPRSTWX345679</param-value>
    		</init-param>
    		
    		<init-param>
    			<param-name>kaptcha.image.height</param-name>
    			<param-value>50</param-value>
    		</init-param>
    		
    		<init-param>
    			<param-name>kaptcha.textproducer.font.size</param-name>
    			<param-value>43</param-value>
    		</init-param>		
    		
    		<init-param>
    			<param-name>kaptcha.noise.color</param-name>
    			<param-value>black</param-value>
    		</init-param>
    		
    		<init-param>
    			<param-name>kaptcha.textproducer.char.length</param-name>
    			<param-value>4</param-value>
    		</init-param>		
    		
    		<init-param>
    			<param-name>kaptcha.textproducer.font.names</param-name>
    			<param-value>Arial</param-value>
    		</init-param>					
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>Kaptcha</servlet-name>
    		<url-pattern>/Kaptcha</url-pattern>
    	</servlet-mapping>
    	<servlet>
    		<servlet-name>spring-dispatcher</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		<init-param>
    			<param-name>contextConfigLocation</param-name>
    			<param-value>classpath:spring/spring-*.xml</param-value>
    		</init-param>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>spring-dispatcher</servlet-name>
    		
    		<url-pattern>/</url-pattern>
    	</servlet-mapping>
    </web-app>

## 3、spring-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 class="com.imooc.o2o.util.EncryptPropertyPlaceholderConfigurer">
    		<property name="locations">
    			<list>
    				<value>classpath:jdbc.properties</value>
    				<value>classpath:redis.properties</value>
    			</list>
    		</property>
    		<property name="fileEncoding" value="UTF-8" />
    	</bean>
    	
    	<bean id="abstractDataSource" abstract="true" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
    		
    		<property name="maxPoolSize" value="30" />
    		<property name="minPoolSize" value="10" />
    		<property name="initialPoolSize" value="10"/> 
    		
    		<property name="autoCommitOnClose" value="false" />
    		
    		<property name="checkoutTimeout" value="10000" />
    		
    		<property name="acquireRetryAttempts" value="2" />
    	</bean>
    	<bean id="master" parent="abstractDataSource">
    		
    		<property name="driverClass" value="${jdbc.driver}" />
    		<property name="jdbcUrl" value="${jdbc.master.url}" />
    		<property name="user" value="${jdbc.username}" />
    		<property name="password" value="${jdbc.password}" />
    	</bean>
    	<bean id="slave" parent="abstractDataSource">
    		
    		<property name="driverClass" value="${jdbc.driver}" />
    		<property name="jdbcUrl" value="${jdbc.slave.url}" />
    		<property name="user" value="${jdbc.username}" />
    		<property name="password" value="${jdbc.password}" />
    	</bean>
    	
    	<bean id="dynamicDataSource" class="com.imooc.o2o.dao.split.DynamicDataSource">
    		<property name="targetDataSources">
    			<map>
    				<entry value-ref="master" key="master"></entry>
    				<entry value-ref="slave" key="slave"></entry>
    			</map>
    		</property>
    	</bean>
    	<bean id="dataSource" class="org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy">
    		<property name="targetDataSource">
    			<ref bean="dynamicDataSource" />
    		</property>
    	</bean>
    
    	
    	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    		
    		<property name="dataSource" ref="dataSource" />
    		
    		<property name="configLocation" value="classpath:mybatis-config.xml" />
    		
    		<property name="typeAliasesPackage" value="com.imooc.entity" />
    		
    		<property name="mapperLocations" value="classpath:mapper/*.xml" />
    	</bean>
    
    	
    	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    		
    		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    		
    		<property name="basePackage" value="com.imooc.o2o.dao" />
    	</bean>
    </beans>

## 4、spring-redis.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="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
    		
    		<property name="maxTotal" value="${redis.pool.maxActive}" />
    		
    		<property name="maxIdle" value="${redis.pool.maxIdle}" />
    		
    		<property name="maxWaitMillis" value="${redis.pool.maxWait}" />
    		
    		<property name="testOnBorrow" value="${redis.pool.testOnBorrow}" />
    	</bean>
    
    	
    	<bean id="jedisWritePool" class="com.imooc.o2o.cache.JedisPoolWriper" depends-on="jedisPoolConfig">
    		<constructor-arg index="0" ref="jedisPoolConfig" />
    		<constructor-arg index="1" value="${redis.hostname}" />
    		<constructor-arg index="2" value="${redis.port}" type="int" />
    	</bean>
    
    	
    	<bean id="jedisUtil" class="com.imooc.o2o.cache.JedisUtil" scope="singleton">
    		<property name="jedisPool">
    			<ref bean="jedisWritePool" />
    		</property>
    	</bean>
    	
    	<bean id="jedisKeys" class="com.imooc.o2o.cache.JedisUtil$Keys" scope="singleton">
    		<constructor-arg ref="jedisUtil"></constructor-arg>
    	</bean>
    	
    	<bean id="jedisStrings" class="com.imooc.o2o.cache.JedisUtil$Strings" scope="singleton">
    		<constructor-arg ref="jedisUtil"></constructor-arg>
    	</bean>
    	
    	<bean id="jedisLists" class="com.imooc.o2o.cache.JedisUtil$Lists" scope="singleton">
    		<constructor-arg ref="jedisUtil"></constructor-arg>
    	</bean>
    	
    	<bean id="jedisSets" class="com.imooc.o2o.cache.JedisUtil$Sets" scope="singleton">
    		<constructor-arg ref="jedisUtil"></constructor-arg>
    	</bean>
    	
    	<bean id="jedisHash" class="com.imooc.o2o.cache.JedisUtil$Hash" scope="singleton">
    		<constructor-arg ref="jedisUtil"></constructor-arg>
    	</bean>
    </beans>

## 5、spring-service.xml ##

## 6、spring-web.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-3.2.xsd">
    	
    	
    	<mvc:annotation-driven />
    
    	
    	<mvc:resources mapping="/resources/**" location="/resources/" />
    	<mvc:default-servlet-handler />
    
    	
    	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		<property name="prefix" value="/WEB-INF/html/"></property>
    		<property name="suffix" value=".html"></property>
    	</bean>
    	
    	<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    		<property name="defaultEncoding" value="utf-8"></property>
    		
    		<property name="maxUploadSize" value="20971520"></property>
    		<property name="maxInMemorySize" value="20971520"></property>
    	</bean>
    
    	
    	<context:component-scan base-package="com.imooc.o2o.web" />
    	
    	<mvc:interceptors>
    		
    		<mvc:interceptor>
    			<mvc:mapping path="/shopadmin/**" />
    			<bean id="ShopInterceptor" class="com.imooc.o2o.interceptor.shopadmin.ShopLoginInterceptor" />
    		</mvc:interceptor>
    		
    		<mvc:interceptor>
    			<mvc:mapping path="/shopadmin/**" />
    			
    			<mvc:exclude-mapping path="/shopadmin/shoplist" />
    			<mvc:exclude-mapping path="/shopadmin/getshoplist" />
    			
    			<mvc:exclude-mapping path="/shopadmin/getshopinitinfo" />
    			<mvc:exclude-mapping path="/shopadmin/registershop" />
    			<mvc:exclude-mapping path="/shopadmin/shopoperation" />
    			
    			<mvc:exclude-mapping path="/shopadmin/shopmanagement" />
    			<mvc:exclude-mapping path="/shopadmin/getshopmanagementinfo" />
    			<bean id="ShopPermissionInterceptor" class="com.imooc.o2o.interceptor.shopadmin.ShopPermissionInterceptor" />
    		</mvc:interceptor>
    		
    		<mvc:interceptor>
    			<mvc:mapping path="/superadmin/**" />
    			<mvc:exclude-mapping path="/superadmin/login" />
    			<mvc:exclude-mapping path="/superadmin/logincheck" />
    			<mvc:exclude-mapping path="/superadmin/main" />
    			<mvc:exclude-mapping path="/superadmin/top" />
    			<mvc:exclude-mapping path="/superadmin/clearcache4area" />
    			<mvc:exclude-mapping path="/superadmin/clearcache4headline" />
    			<mvc:exclude-mapping path="/superadmin/clearcache4shopcategory" />
    			<bean id="SuperAdminLoginInterceptor" class="com.imooc.o2o.interceptor.superadmin.SuperAdminLoginInterceptor" />
    		</mvc:interceptor>
    	</mvc:interceptors>
    </beans>

## 7、mybatis-config.xml ##

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
    <configuration>
    	
    	<settings>
    		
    		<setting name="useGeneratedKeys" value="true" />
    
    		
    		<setting name="useColumnLabel" value="true" />
    
    		
    		<setting name="mapUnderscoreToCamelCase" value="true" />
    	</settings>
    	<plugins>
    		<plugin interceptor="com.imooc.o2o.dao.split.DynamicDataSourceInterceptor">
    		</plugin>
    	</plugins>
    </configuration>

## 8、logback.xml ##

<?xml version="1.0" encoding="UTF-8"?>
    <configuration scan="true" scanPeriod="60 seconds" debug="false">
    	
    	
    	
    	<property name="log.level" value="debug" />
    	<property name="log.maxHistory" value="30" />
    	<property name="log.filePath" value="${catalina.base}/logs/webapps" />
    	<property name="log.pattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n" />
    	
    	<appender name="consoleAppender" class="ch.qos.logback.core.ConsoleAppender">
    		<encoder>
    			<pattern>${log.pattern}</pattern>
    		</encoder>
    	</appender>
    	
    	<appender name="debugAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
    		
    		<file>${log.filePath}/debug.log</file>
    		<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
    			
    			<fileNamePattern>${log.filePath}/debug/debug.%d{yyyy-MM-dd}.log.gz
    			</fileNamePattern>
    			
    			<maxHistory>${log.maxHistory}</maxHistory>
    		</rollingPolicy>
    		<encoder>
    			<pattern>${log.pattern}</pattern>
    		</encoder>
    		<filter class="ch.qos.logback.classic.filter.LevelFilter">
    			<level>DEBUG</level>
    			<onMatch>ACCEPT</onMatch>
    			<onMismatch>DENY</onMismatch>
    		</filter>
    	</appender>
    	
    	<appender name="infoAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
    		
    		<file>${log.filePath}/info.log</file>
    		<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
    			
    			<fileNamePattern>${log.filePath}/info/info.%d{yyyy-MM-dd}.log.gz
    			</fileNamePattern>
    			
    			<maxHistory>${log.maxHistory}</maxHistory>
    		</rollingPolicy>
    		<encoder>
    			<pattern>${log.pattern}</pattern>
    		</encoder>
    		<filter class="ch.qos.logback.classic.filter.LevelFilter">
    			<level>INFO</level>
    			<onMatch>ACCEPT</onMatch>
    			<onMismatch>DENY</onMismatch>
    		</filter>
    	</appender>
    	
    	<appender name="errorAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
    		
    		<file>${log.filePath}/erorr.log</file>
    		<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
    			
    			<fileNamePattern>${log.filePath}/error/error.%d{yyyy-MM-dd}.log.gz
    			</fileNamePattern>
    			
    			<maxHistory>${log.maxHistory}</maxHistory>
    		</rollingPolicy>
    		<encoder>
    			<pattern>${log.pattern}</pattern>
    		</encoder>
    		<filter class="ch.qos.logback.classic.filter.LevelFilter">
    			<level>ERROR</level>
    			<onMatch>ACCEPT</onMatch>
    			<onMismatch>DENY</onMismatch>
    		</filter>
    	</appender>
    	<logger name="com.imooc.o2o" level="${log.level}" additivity="true">
    		<appender-ref ref="debugAppender"/>
    		<appender-ref ref="infoAppender"/>
    		<appender-ref ref="errorAppender"/>
    	</logger>
    	<root level="info">
    		<appender-ref ref="consoleAppender"/>
    	</root>
    </configuration>

## 9、jdbc.properties ##

jdbc.driver=com.mysql.cj.jdbc.Driver
    jdbc.slave.url=jdbc:mysql://106.13.78.180:3306/o2o?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
    jdbc.master.url=jdbc:mysql://106.13.78.180:3306/o2o?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
    jdbc.username=WnplV/ietfQ=
    jdbc.password=RxQNfAQRZdFbfLs72BFqeQ==

## 10、redis.properties ##

redis.hostname=127.0.0.1
    redis.port=6379
    redis.database=0
    redis.pool.maxActive=100
    redis.pool.maxIdle=20
    redis.pool.maxWait=3000
    redis.pool.testOnBorrow=true

## 11、weixin.properties ##

weixinappid=PTv/7qETW0kO5N0WT223IlBEOUuK0+SO
    weixinappsecret=jOjEubTD3dTzTbNzX+vREKnTJvvKZRud6c3712kCaGgfJAfVsP+M2w==

## 12、@RequestParam ##

*  作用：把请求中指定名称的参数给控制器中的形参赋值。
 *  属性：  
    value：请求参数中的名称。  
    required：请求参数中是否必须提供此参数。默认值：true。表示必须提供，如果不提供将报错。
 *  使用示例：
 *  jsp 代码：

<a href="springmvc/useRequestParam?name=test">requestParam 注解</a>

*  控制器代码：

/** * requestParams 注解的使用 * @param username * @return */
    @RequestMapping("/useRequestParam")
    public String  useRequestParam(@RequestParam("name")String username, @RequestParam(value="age",required=false)Integer age){ 
    	System.out.println(username+","+age);
    	return "success";
    }

## 13、@RequestBody ##

*  作用：用于获取请求体内容，直接使用得到是 `key=value&key=value...`结构的数据。get 请求方式不适用。
 *  属性：  
    required：是否必须有请求体。默认值是:true。当取值为 true 时,get 请求方式会报错。如果取值为 false，get 请求得到是 null。
 *  使用示例：
 *  post 请求 jsp 代码：

<form action="springmvc/useRequestBody" method="post">
    	用户名称：<input type="text" name="username" ><br/>
    	用户密码：<input type="password" name="password" ><br/>
    	用户年龄：<input type="text" name="age" ><br/>
    	<input type="submit" value=" 保存 ">
    </form>

*  get 请求 jsp 代码：

<a href="springmvc/useRequestBody?body=test">requestBody 注解 get 请求</a>

*  控制器代码：

/** * RequestBody 注解 * @param user * @return */
    @RequestMapping("/useRequestBody")
    public String  useRequestBody(@RequestBody(required=false) String body){ 
    	System.out.println(body);
    	return "success";
    }

## 14、@PathVariable ##

*  作用：用于绑定 url 中的占位符。例如：请求 url 中 /delete/\{id\}，这个\{id\}就是 url 占位符。url 支持占位符是 spring3.0 之后加入的，是 springmvc 支持 rest 风格 URL 的一个重要标志。
 *  属性：  
    value：用于指定 url 中占位符名称。  
    required：是否必须提供占位符。
 *  使用示例：
 *  jsp 代码：

<a href="springmvc/usePathVariable/100">pathVariable 注解</a>

*  控制器代码：

/** * PathVariable 注解 * @param user * @return */
    @RequestMapping("/usePathVariable/{id}")
    public String  usePathVariable(@PathVariable("id") Integer id){ 
    	System.out.println(id);
    	return "success";
    }

## 15、@RequestHeader ##

*  作用：用于获取请求消息头。
 *  属性：  
    value：提供消息头名称  
    required：是否必须有此消息头
 *  使用示例：
 *  jsp 代码：

<a href="springmvc/useRequestHeader">获取请求消息头</a>

*  控制器代码：

/** * RequestHeader 注解 * @param user * @return */
    @RequestMapping("/useRequestHeader")
    public String  useRequestHeader(@RequestHeader(value="Accept-Language", required=false)String requestHeader){ 
    	System.out.println(requestHeader);
    	return "success";
    }

## 16、@CookieValue ##

*  作用：用于把指定 cookie 名称的值传入控制器方法参数。
 *  属性：  
    value：指定 cookie 的名称。  
    required：是否必须有此 cookie。
 *  使用示例：
 *  jsp 代码：

<a href="springmvc/useCookieValue">绑定 cookie 的值</a>

*  控制器中的代码：

/** * Cookie 注解注解 * @param user * @return */
    @RequestMapping("/useCookieValue")
    public String  useCookieValue(@CookieValue(value="JSESSIONID",required=false)String cookieValue){ 
    	System.out.println(cookieValue);
    	return "success";
    }