利用 spring mvc ResponseEntity 做文件下载



controller代码：

@RequestMapping(value = "/cmpSts/{cmpId}", method = RequestMethod.GET)
	public ResponseEntity<byte[]> cmpSts(@PathVariable int cmpId,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		Locale local=request.getLocale();
		String[] file = new String[]{"a.txt","a,b"};
		byte[] bs = file[1].getBytes("UTF-8");
		HttpHeaders headers = new HttpHeaders();
	    headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
	    headers.setContentDispositionFormData("attachment", new String(file[0].getBytes("UTF-8"), "ISO8859-1"));  //解决文件名中文乱码问题
		return new ResponseEntity<byte[]>(bs, headers, HttpStatus.CREATED);
	}

xml配置：

<bean
		class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
		<property name="messageConverters">
			<list>

				<bean
					class="org.springframework.http.converter.StringHttpMessageConverter">
					<property name="writeAcceptCharset" value="false" />
					<property name="supportedMediaTypes">
						<list>
							<value>text/plain;charset=UTF-8</value>
						</list>
					</property>
				</bean>
				<bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"/>
				<bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
				    <property name="supportedMediaTypes">
				        <list>
				            <value>application/json;charset=UTF-8</value>
				       </list>
				    </property>
				</bean>
			</list>
		</property>
	</bean>

我参考文章：http://sishuok.com/forum/posts/list/5351.html



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