用java程序模拟网站的登录以及文件批量上传

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.BasicCookieStore;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

public class FileUpload {

	public static void main(String[] args) throws Exception {
		FileUpload fileupload=new FileUpload();
		String LoginUrl = "";// 登录地址，get请求，所以这里面带了账号和密码
		String UploadUrl = "";// 上传文件地址
		String FileUrl ="";// 所要上传的文件夹

		fileupload.GetCookies(LoginUrl);
		fileupload.UploadFile(UploadUrl, FileUrl);

	}

	private static BasicCookieStore cookieStore = new BasicCookieStore();
	private static CloseableHttpClient httpClient = HttpClients.custom()
			.setDefaultCookieStore(cookieStore).build();

	// 登录请求Get，得到cookie。如果是post请求，把账号和密码配置成表单参数，
	public  void GetCookies(String urlstr) throws Exception {
		HttpGet httpget = new HttpGet(urlstr);
		 httpClient.execute(httpget);

	}

	//文件上传请求，POST
	public  void UploadFile(String Url, String sqlitPath)
			throws IOException {
		try {
			HttpPost httpPost = new HttpPost(Url);
			File root = new File(sqlitPath);
			File[] files = root.listFiles();
			for (File file : files) {
				String FilePath = file.getAbsolutePath();
				HttpEntity reqEntity = makeMultipartEntity(FilePath);
				httpPost.setEntity((org.apache.http.HttpEntity) reqEntity);
				httpClient.execute(httpPost);
			}
		} finally {
			httpClient.close();
		}

	}

	// 配置文件上传参数
	public  HttpEntity makeMultipartEntity(String sqlitPath) {
		MultipartEntityBuilder builder = MultipartEntityBuilder.create();
		builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);

		NameValuePair pair1 = new BasicNameValuePair("", "");
		NameValuePair pair2 = new BasicNameValuePair("", "");
		ArrayList<NameValuePair> pairs = new ArrayList<NameValuePair>();
		pairs.add(pair1);
		pairs.add(pair2);

		if (pairs != null && pairs.size() > 0) {
			for (NameValuePair p : pairs) {
				builder.addTextBody(p.getName(), p.getValue(),
						ContentType.TEXT_PLAIN.withCharset("UTF-8"));
			}
		}
		FileBody bin = new FileBody(new File(sqlitPath));
		builder.addPart("upload", bin);
		return builder.build();
	}
}