调用jersey发布的接口webservice，通过HttpPost传递文件

　　项目媒体文件之前都是上传到七牛云处理，现在客户为了安全和私密性，准备将移动端拍摄的图片和视频传递到文件服务器，所以就想办法能不能在服务器端发布一个WebService，供移动端调用。刚好之前做的接口都是使用jersey架构来处理的，后来查了一下资料，刚好jersey提供了文件POST的处理。

　　客户端代码：

　　

package env.ws.restful.media;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class Test {

    public  static void httpPost() {
        String url = "http://127.0.0.1:8001/rest/attachment/fileload";  //服务端发布的接口地址
        String filePath = "D:/123.jpg";   //需要传递到服务器的文件路径
        File file = new File(filePath);
        try {
            InputStream in = new FileInputStream(file);
            MultipartEntityBuilder entityBuilder = MultipartEntityBuilder.create();
            entityBuilder.addTextBody("type", "image");
            entityBuilder.addTextBody("filename", "001.jpg");
            System.out.println("Client："+in.available());
            entityBuilder.addBinaryBody("file", in, ContentType.MULTIPART_FORM_DATA, "234.jpg");
//            entityBuilder.addBinaryBody("file", in);

            CloseableHttpClient  httpClient = HttpClients.createDefault();
            HttpPost httpPost = new HttpPost(url);

            httpPost.setEntity(entityBuilder.build());

           //执行post接口
           HttpResponse response = httpClient.execute(httpPost);

           String result="";
           if (response!=null && response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                HttpEntity resEntity = response.getEntity();
                if(resEntity != null){
                    result = EntityUtils.toString(resEntity,Consts.UTF_8);
                }
            }
           System.out.println(result);

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    public static void main(String[] args) {
        httpPost();
    }

}

　　服务器端代码：

package env.ws.restful.media;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import org.json.JSONObject;
import com.sun.jersey.core.header.FormDataContentDisposition;
import com.sun.jersey.multipart.FormDataParam;
import p2.ws.restful.WSRESTService;

@Path("/attachment")
public class AttchmentService implements WSRESTService{

    public AttchmentService() {
    }

    @POST
    @Path("/fileload")
    @Produces({MediaType.APPLICATION_JSON})
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    public String upLoadFile(@FormDataParam("file") InputStream fileInputStream,
            @FormDataParam("file") FormDataContentDisposition disposition,
            @FormDataParam("type") String type,
            @FormDataParam("filename") String resourceId) {

        System.out.println("开始调用！");

        JSONObject result = new JSONObject();
        if(type==null || resourceId==null || fileInputStream==null){
            result.put("code", "10001");
            result.put("msg", "参数不正确");
            return result.toString();
        }
        FileOutputStream out=null;
        try {
            out = new FileOutputStream(new File("D:/Test/"+disposition.getFileName()));
            byte[] bytes = new byte[1024];
            int byteCount = 0;
            while ((byteCount = fileInputStream.read(bytes)) != -1){
                out.write(bytes, 0, byteCount);
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }finally{
            try {
                fileInputStream.close();
                out.flush();
                out.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        System.out.println("结束调用！");
        result.put("code", "10000");
        result.put("msg", "上传成功！");
        return result.toString();
    }

}

　　执行客户端Test.java,调用成功以后会在服务器端的 D:\Test 盘下生成234.jpg