HttpClient 传输文件的两种方式

package com.skd.util;import com.skd.common.Constant;import com.skd.common.Event;import org.apache.commons.httpclient.HttpClient;import org.apache.commons.httpclient.methods.PostMethod;import org.apache.commons.httpclient.methods.multipart.FilePart;import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;import org.apache.commons.httpclient.methods.multipart.Part;import org.apache.commons.httpclient.methods.multipart.StringPart;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import java.io.File;import java.util.ArrayList;import java.util.List;/** * @Description * @Author virgosnail * @Date 2018/12/15 17:06 */public class HttpUtil2{ ???private static Logger log = LoggerFactory.getLogger(HttpUtil2.class); ???/** ????* org.apache.commons.httpclient.HttpClient ?????*/ ???private static HttpClient httpClient = new HttpClient(); ???/** ????* @param event ?0:删除 ?1：新增 ?2：修改 ????* @param file ????* @return ????????* @Author Administrator ????* @Date 2018年11月11日 ????*/ ???public static void doPostMethod(Event event, File file) ???{ ???????try ???????{ ???????????PostMethod post = new PostMethod(FileUtil.getURL()); ???????????post.setRequestHeader("Content-Type","application/json"); ???????????List<Part> list = new ArrayList<>(); ???????????list.add(new StringPart(Constant.TYPE, event.getValue())); ???????????list.add(new StringPart(Constant.RELATIVE_PATH, file.getPath())); ???????????????????????if (!Event.FILE_DELETE.equals(event)) ???????????{
　　　　　　　　　　// ????????????????list.add(new FilePart(Constant.FILE, file)); ???????????} ???????????Part[] parts = new Part[list.size()]; ???????????list.toArray(); ???????????post.setRequestEntity(new MultipartRequestEntity(parts, post.getParams())); ???????????????????????log.info("request： " + post); ???????????????????????httpClient.executeMethod(post); ???????????String response = post.getResponseBodyAsString(); ???????????log.info("respopnse: " + response); ???????} catch (Exception e) ???????{ ???????????log.error("doPostMethod occur a exception", e); ???????} ???}}

package com.skd.util;import com.skd.common.Constant;import com.skd.common.Event;import net.sf.json.JSONObject;import org.apache.http.Header;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.ContentType;import org.apache.http.entity.StringEntity;import org.apache.http.entity.mime.MultipartEntityBuilder;import org.apache.http.entity.mime.content.FileBody;import org.apache.http.impl.client.HttpClients;import org.apache.http.util.EntityUtils;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import java.io.File;import java.nio.charset.Charset;/** * @Description * @Author virgosnail * @Date 2018/12/15 17:06 */public class HttpUtil{ ???private static Logger log = LoggerFactory.getLogger(HttpUtil.class); ???/** ????* ????org.apache.http.client.HttpClient; ????* ????创建一个httpclient对象 ?????*/ ???private static HttpClient httpclient = HttpClients.createDefault(); ???????/** ????* @param event ?0:删除 ?1：新增 ?2：修改 ????* @param file ????* @return ????????* @Author Administrator ????* @Date 2018年11月11日 ????*/ ???public static void doPost(Event event, File file, boolean isDir, boolean hasFile) ???{ ???????try ???????{ ???????????// 创建http的发送方式对象，是GET还是POST ???????????String url = FileUtil.getURL(); ???????????HttpPost httppost = new HttpPost(url); ???????????log.info(" URL: " + url); ???????????httppost.addHeader("Charset",Constant.CHARSET); ???????????// 创建要发送的实体，就是key-value的这种结构，借助于这个类，可以实现文件和参数同时上传 ???????????MultipartEntityBuilder fileEntity = MultipartEntityBuilder.create(); ???????????// 设置编码 ???????????Charset charset = Charset.forName(Constant.CHARSET); ???????????fileEntity.setCharset(charset); ???????????// 追加要发送的文本信息并设置编码格式 ???????????fileEntity.addTextBody(Constant.TYPE, event.getValue(),ContentType.APPLICATION_JSON); ???????????log.info("type： " + event.getValue()); ???????????String relativePath = FileUtil.getRelativePath(file.getAbsolutePath()); ???????????fileEntity.addTextBody(Constant.RELATIVE_PATH, relativePath,ContentType.APPLICATION_JSON); ???????????log.info("relative_path： " + relativePath); ???????????fileEntity.addTextBody(Constant.ISDIR, String.valueOf(isDir),ContentType.APPLICATION_JSON); ???????????log.info("isDir： " + isDir); ???????????if (Event.FILE_CREATE.equals(event) || Event.FILE_CHANGE.equals(event)){ ???????????????fileEntity.addPart(Constant.FILE, new FileBody(file,ContentType.APPLICATION_OCTET_STREAM)); ???????????} ???????????log.info("file： " + file); ???????????HttpEntity httpEntity = fileEntity.build(); ???????????httppost.setEntity(httpEntity); ???????????// 执行httppost对象并获得response ???????????HttpResponse response = httpclient.execute(httppost); ???????????// 状态码 ???????????int statusCode = response.getStatusLine().getStatusCode(); ???????????HttpEntity resEntity = response.getEntity(); ???????????// 获得返回来的信息，转化为字符串string ???????????String respopnse = EntityUtils.toString(resEntity); ???????????log.info("respopnse body: " + respopnse); ???????} catch (Exception e) ???????{ ???????????log.error("doPost occur a exception", e); ???????} ???}}