RestTemplate 中文乱码解决方法

Spring4.2.2.RELEASE   RestTemplate 中文乱码解决方法
       
       RestTempalate 字符串类型默认StringHttpMessageConverter做转码，而StringHttpMessageConverter的默认编码集是ISO8859-1,本工程编码是UTF-8 故发送到服务器端会存在中文乱码
  解决方法有两种：
  第一种：把restTempalate 中  StringHttpMessageConverter 默认编码设置为UTF-8
  具体：使用 restTempalate 构造函数 public RestTemplate(List<HttpMessageConverter<?>> messageConverters) 传入 StringHttpMessageConverter 默认编码集是UTF-8 的转换器
  在 配置文件中配置：
  

<bean id="restTemplate" class="org.springframework.web.client.RestTemplate">
	     	<constructor-arg index="0">
	     		<list>
	     			<bean id="byteArrayHttpMessageConverter" class="org.springframework.http.converter.ByteArrayHttpMessageConverter"></bean>
	     			<bean id="stringHttpMessageConverter" class="org.springframework.http.converter.StringHttpMessageConverter">
	     				<constructor-arg value="UTF-8"></constructor-arg>
	     			</bean>
	     			<bean id="resourceHttpMessageConverter" class="org.springframework.http.converter.ResourceHttpMessageConverter"></bean>
	     			<bean id="sourceHttpMessageConverter" class="org.springframework.http.converter.xml.SourceHttpMessageConverter"></bean>
	     			<bean id="allEncompassingFormHttpMessageConverter" class="org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter"></bean>
	     			<bean id="jaxb2RootElementHttpMessageConverter" class="org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter"></bean>
	     			<bean id="mappingJackson2HttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"></bean>
	     		</list>
	     	</constructor-arg>
	 	</bean>

  
  
第二种：使用 设置Http请求头中设置 Content-Type: application/x-www-form-urlencoded; charset=UTF-8 修改默认编码
 

HttpHeaders headers = new HttpHeaders();
		MediaType type = MediaType.parseMediaType("application/x-www-form-urlencoded; charset=UTF-8");
		headers.setContentType(type);
		System.out.println(type);
		HttpEntity<String> requestEntity = new HttpEntity<String>(PostStrUtils.getPostStrFromMap(paramMap),  headers);
		
		String msg = restTemplate.postForObject(url,requestEntity, String.class);

		

public String sendToRest(String url, Map<String, String> paramMap) {
		logger.debug("====================start======================");
		logger.debug("调用接口-" + restUrl + url + " 入参:" + paramMap);


		/**
		 * restTempalate 字符串类型默认StringHttpMessageConverter做转码，而StringHttpMessageConverter的默认编码集是ISO8859-1,本工程编码是UTF-8 故发送到服务器端会存在中文乱码
		 * 解决方法有两种：
		 * 第一种：把restTempalate 中  StringHttpMessageConverter 默认编码设置为UTF-8 
		 * 具体：使用 restTempalate 构造函数 public RestTemplate(List<HttpMessageConverter<?>> messageConverters) 传入 StringHttpMessageConverter 默认编码集是UTF-8 的转换器
		 * 在 配置文件中配置：
		 *  <bean id="restTemplate" class="org.springframework.web.client.RestTemplate">
		 *    	<constructor-arg index="0">
		 *    		<list>
		 *    			<bean id="byteArrayHttpMessageConverter" class="org.springframework.http.converter.ByteArrayHttpMessageConverter"></bean>
		 *    			<bean id="stringHttpMessageConverter" class="org.springframework.http.converter.StringHttpMessageConverter">
		 *    				<constructor-arg value="UTF-8"></constructor-arg>
		 *    			</bean>
		 *    			<bean id="resourceHttpMessageConverter" class="org.springframework.http.converter.ResourceHttpMessageConverter"></bean>
		 *    			<bean id="sourceHttpMessageConverter" class="org.springframework.http.converter.xml.SourceHttpMessageConverter"></bean>
		 *    			<bean id="allEncompassingFormHttpMessageConverter" class="org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter"></bean>
		 *    			<bean id="jaxb2RootElementHttpMessageConverter" class="org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter"></bean>
		 *    			<bean id="mappingJackson2HttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"></bean>
		 *    		</list>
		 *    	</constructor-arg>
		 *	</bean>
		 *  
		 *  
		 * 第二种：使用 设置Http请求头中设置 Content-Type: application/x-www-form-urlencoded; charset=UTF-8 修改默认编码
		 * 
		 */
		
		//存在中文乱问题
//		String msg = restTemplate.postForObject(restUrl + url,
//				PostStrUtils.getPostStrFromMap(paramMap), String.class);
		
		//
		HttpHeaders headers = new HttpHeaders();
		MediaType type = MediaType.parseMediaType("application/x-www-form-urlencoded; charset=UTF-8");
		headers.setContentType(type);
		System.out.println(type);
		HttpEntity<String> requestEntity = new HttpEntity<String>(PostStrUtils.getPostStrFromMap(paramMap),  headers);
		
		String msg = restTemplate.postForObject(url,requestEntity, String.class);

		logger.debug("调用接口-" + restUrl + url + " 返回:" + msg);
		logger.debug("====================end========================");

		return msg;
	}

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