Springmvc3.2注解 基本教程

摘要: 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>