java - 找不到类 'org.apache.http.entity.mime.content.Filebody'，从方法中引用

Question

我想做的是将图片发送到网络服务器。当我在我的 Android 项目中调用方法时，出现以下错误:找不到类“org.apache.http.entity.mime.content.Filebody”，引用自方法 com.example.tc.Send.send。

即使我有以下导入，也会发生这种情况:

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.mime.MultipartEntity;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.impl.client.DefaultHttpClient;

这是方法所在的类的样子:

public class Send {
public Send(){
}

public static String send(String path) throws Exception {
    String filePath = path;
    String svar;

    HttpClient httpclient = new DefaultHttpClient();
    try {
        HttpPost httppost = new HttpPost("path to web server"); 
        FileBody pic = new FileBody(new File(filePath)); 
        MultipartEntity requestEntity = new MultipartEntity(); 
        requestEntity.addPart("file", pic);

        httppost.setEntity(requestEntity);
        System.out.println("executing request " + httppost.getRequestLine());
        HttpResponse response = httpclient.execute(httppost);
        HttpEntity responseEntity = response.getEntity();
        System.out.println("----------------------------------------");
        System.out.println(response.getStatusLine());

        ByteArrayOutputStream outstream = new ByteArrayOutputStream();
        response.getEntity().writeTo(outstream);
        byte [] responseBody = outstream.toByteArray();
        svar = new String(responseBody);
        System.out.println(svar);

    } finally {
        try {
            httpclient.getConnectionManager().shutdown();
        } 
        catch (Exception ignore) {
        }
    }
    return svar;
}
}

谁能看出是什么问题？

Answer 1

添加这两个依赖

compile "org.apache.httpcomponents:httpcore:4.2.4"
compile "org.apache.httpcomponents:httpmime:4.3"