Springmvc3.2注解 基本教程

导入准备好的jar

下面会放出地址

在web.xml配置文件下面写这些内容 

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

	<context-param>
		<param-name>contextConfigLocatioin</param-name>
		<param-value>/WEB-INF/applicationContext.xml</param-value>
	</context-param>

	<listener>
		<listener-class>
			org.springframework.web.context.ContextLoaderListener
		</listener-class>
	</listener>
	<servlet>
		<servlet-name>springmvc</servlet-name>
		<servlet-class>
			org.springframework.web.servlet.DispatcherServlet
		</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>springmvc</servlet-name>
		<url-pattern>*.htm</url-pattern>
	</servlet-mapping>
	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
	<login-config>
		<auth-method>BASIC</auth-method>
	</login-config>

	<!-- 编码转换器 -->
	<filter>
		<filter-name>setcharacter</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>setcharacter</filter-name>
		<url-pattern>*.htm</url-pattern>
	</filter-mapping>
</web-app>

在使用springmvc3.2的json的时候 会出现乱码  这边小小的解决一下

查看一下springmvc的源码

然后定义一下UTF8StringHttpMessageConverter这个类 继承 StringHttpMessageConverter这个类

package me.note.spring.framework;


import java.io.IOException;
import java.io.OutputStreamWriter;
import java.nio.charset.Charset;
import java.util.Arrays;
import java.util.List;

import org.springframework.http.HttpOutputMessage;
import org.springframework.http.MediaType;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.util.FileCopyUtils;

public class UTF8StringHttpMessageConverter extends StringHttpMessageConverter {

	private static final MediaType utf8 = new MediaType("text", "plain",
			Charset.forName("UTF-8"));

	private boolean writeAcceptCharset = true;

	@Override
	protected MediaType getDefaultContentType(String dumy) {
		return utf8;
	}

	protected List<Charset> getAcceptedCharsets() {

		return Arrays.asList(utf8.getCharSet());

	}

	protected void writeInternal(String s, HttpOutputMessage outputMessage)
			throws IOException {

		if (this.writeAcceptCharset) {

			outputMessage.getHeaders().setAcceptCharset(getAcceptedCharsets());

		}
		Charset charset = utf8.getCharSet();
		FileCopyUtils.copy(s, new OutputStreamWriter(outputMessage.getBody(),
				charset));
	}

	public boolean isWriteAcceptCharset() {
		return writeAcceptCharset;
	}

	public void setWriteAcceptCharset(boolean writeAcceptCharset) {
		this.writeAcceptCharset = writeAcceptCharset;
	}

}

然后在springmvc-servlet.xml配置文件 下面增加

<?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: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-3.0.xsd  
						http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd  
						http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd ">



	<!-- 配置包名下的配置文件 -->
	<context:component-scan base-package="me.note.pro"></context:component-scan>

	<bean
		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
		<property name="messageConverters">
			<list>
				<bean id="utf8StringHttpMessageConverter"
					class="me.note.spring.framework.UTF8StringHttpMessageConverter" />
				<ref bean="mappingJacksonHttpMessageConverter"/>
			</list>
		</property>
	</bean>

	<bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
		<property name="supportedMediaTypes">
			<list>
				<value>text/html;charset=UTF-8</value>
			</list>
		</property>
	</bean>
	
</beans>