代碼如下：

// 運用第三方j(luò)ar包HttpClient進(jìn)行上傳
private void uploadHttpClient() {
? ?HttpClient client = new DefaultHttpClient();
? ?HttpPost post = new HttpPost(url);
? ?MultipartEntity muti = new MultipartEntity();
? ?File parent = Environment.getExternalStorageDirectory();
? ?File fileAbs = new File(parent, "one.png");
? ?
? ?FileBody fileBody = new FileBody(fileAbs);
? ?muti.addPart("file", fileBody);
? ?post.setEntity(muti);
? ?try {
? ? ? ?HttpResponse response = client.execute(post);
? ? ? ?if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
? ? ? ? ? ?System.out.println(EntityUtils.toString(response.getEntity()));
? ? ? ?}
? ?} catch (IOException e) {
? ? ? ?e.printStackTrace();
? ?}
}

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public class UploadActivity extends AppCompatActivity {
? ?private Button mButton;

? ?@Override
? ?protected void onCreate(@Nullable Bundle savedInstanceState) {
? ? ? ?super.onCreate(savedInstanceState);
? ? ? ?setContentView(R.layout.upload);
? ? ? ?
? ? ? ?mButton = (Button) findViewById(R.id.btn);
? ? ? ?mButton.setOnClickListener(new View.OnClickListener() {
? ? ? ? ? ?@Override
? ? ? ? ? ?public void onClick(View view) {
? ? ? ? ? ? ? ?File file = Environment.getExternalStorageDirectory();
? ? ? ? ? ? ? ?File fileAbs = new File(file,"one.png");
? ? ? ? ? ? ? ?
? ? ? ? ? ? ? ?String fileName=fileAbs.getAbsolutePath();
? ? ? ? ? ? ? ?String url = "http://192.168.23.4:8080/Upload";
? ? ? ? ? ? ? ?UploadThread thread = new UploadThread(fileName,url);
? ? ? ? ? ? ? ?thread.start();
? ? ? ? ? ?}
? ? ? ?});
? ?}
}