java 中HttpClient传输xml字符串实例详解

java 中HttpClient传输xml字符串实例详解

介绍：我现在有一个对象page，需要将page对象转换为xml格式并以binary方式传输到服务端

其中涉及到的技术点有：

1、对象转xml流
2、输出流转输入流
3、httpClient发送二进制流数据

POM文件依赖配置

<dependencies>
 <dependency>
   <groupId>junit</groupId>
   <artifactId>junit</artifactId>
   <version>3.8.1</version>
   <scope>test</scope>
 </dependency>
 <dependency>
   <groupId>org.apache.httpcomponents</groupId>
   <artifactId>httpclient</artifactId>
   <version>4.5.2</version>
 </dependency>

<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpmime</artifactId>
  <version>4.5.2</version>
 </dependency>
 <dependency>
   <groupId>commons-lang</groupId>
   <artifactId>commons-lang</artifactId>
   <version>2.4</version>
 </dependency>
 <dependency>
   <groupId>com.google.code.gson</groupId>
   <artifactId>gson</artifactId>
   <version>2.2.4</version>
   <type>jar</type>
   <scope>compile</scope>
 </dependency>
 <dependency>
   <groupId>org.xwiki.platform</groupId>
   <artifactId>xwiki-platform-rest-model</artifactId>
   <version>7.2</version>
 </dependency>
</dependencies>

java代码示例

public void testNewPage() throws Exception{
   //定义对象
   Page page =new Page();
   page.setTitle("testPage");
   page.setSyntax("xwiki/2.0");
   page.setContent("This is a testPage");
   page.setId("xwiki:Main.testPage");
   //初始化并转换对象为xml文件的流
   JAXBContext context = JAXBContext.newInstance("org.xwiki.rest.model.jaxb");
   Marshaller marshaller=context.createMarshaller();
   Unmarshaller unmarshaller = context.createUnmarshaller();
   ByteArrayOutputStream out = new ByteArrayOutputStream();
   marshaller.marshal( page, out );
   //将流转换并放入到InputStreamEntity中
   InputStreamEntity inputStreamEntity=new InputStreamEntity(new ByteArrayInputStream(out.toByteArray()));

//发送请求
   CloseableHttpClient httpclient = HttpClients.createDefault();
   HttpUriRequest httpPost = RequestBuilder.put()
       .setUri(new URI("http://172.16.200.220:8082/xwiki/rest/wikis/xwiki/spaces/Main/pages/testPage"))
       .setEntity(inputStreamEntity)
       .setHeader("Content-Type", "application/xml")
       .setHeader("Cookie", cookieStr).build();
   //获取返回结果
   CloseableHttpResponse response = httpclient.execute(httpPost);
   System.out.println(response.getStatusLine().getStatusCode());
   HttpEntity responseEntity=response.getEntity();
   System.out.println(responseEntity);
   if(response.getStatusLine().getStatusCode()<400){
     Page responsePage = (Page) unmarshaller.unmarshal(responseEntity.getContent());
     System.out.println(responsePage);
//      System.out.println(new Gson().toJson(responsePage));
   }
 }

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来源：http://blog.csdn.net/gsying1474/article/details/51505714