android和tomcat文件上传和数据交互

package irdc.ex08_11; import java.io.DataOutputStream; import java.io.FileInputStream; import java.net.HttpURLConnection; import java.net.URL; import java.util.HashMap; import java.util.Map; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; /* import相关class */ public class EX08_11 extends Activity implements OnClickListener { /* * 变量声明 filename：上传后在服务器上的文件名称 uploadFile：要上传的文件路径 actionUrl：服务器上对应的程序路径 */ private String uploadFile = "/storage/sdcard/01.png"; private String actionUrl = "http://192.168.0.120:8080/police/fileUpload.action"; private TextView mText1; private TextView mText2; private TextView mText3; private Button mButton,mButton1; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mText1 = (TextView) findViewById(R.id.myText2); mText1.setText("文件路径：\n" + uploadFile); mText2 = (TextView) findViewById(R.id.myText3); mText2.setText("上传网址：\n" + actionUrl); mText3 = (TextView) findViewById(R.id.textView1); // mText3.setText("上传网址：\n" + actionUrl); /* 设置mButton的onClick事件处理 */ mButton = (Button) findViewById(R.id.myButton); mButton.setOnClickListener(this); mButton1 = (Button) findViewById(R.id.button1); mButton1.setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.myButton: upload(); break; case R.id.button1: login(); break; default: break; } } private void login() { Toast.makeText(this, "login",Toast.LENGTH_LONG).show(); String URL1 = "http://192.168.0.120:8080/police/login.action?username=1111&password=22222"; try { //获取后台返回的Json对象 JSONObject mJsonObject = JSONUtil.getJSON(URL1); //获得学生数组 //JSONArray mJsonArray = mJsonObject.getJSONArray("students"); //获取班级 String classes = mJsonObject.getString("username"); mText3.setText(mJsonObject.toString()+" dfgfd"+classes); } catch (JSONException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } /* 上传文件至Server的方法 */ public void upload() { Toast.makeText(this, "upload begin",Toast.LENGTH_SHORT).show(); HttpURLConnection connection = null; DataOutputStream dos = null; FileInputStream fin = null; String boundary = "---------------------------265001916915724"; // 真机调试的话，这里url需要改成电脑ip // 模拟机用10.0.0.2,127.0.0.1被tomcat占用了 String lineEnd = "\r\n"; final String endline = "--" + boundary + "--\r\n";//数据结束标志 try { Toast.makeText(this, "try",Toast.LENGTH_SHORT).show(); URL url = new URL(actionUrl); connection = (HttpURLConnection) url.openConnection(); // 允许向url流中读写数据 connection.setDoInput(true); connection.setDoOutput(true); connection.setUseCaches(true); // 启动post方法 connection.setRequestMethod("POST"); // 设置请求头内容 connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("Content-Type", "text/plain"); // 伪造请求头 connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary); // 开始伪造POST Data里面的数据 dos = new DataOutputStream(connection.getOutputStream()); //fin = new FileInputStream(uploadFile); //用HashMap封数据 Map<String, String> params = new HashMap<String, String>(); params.put("username", "张三"); params.put("password", "123456"); Toast.makeText(this, "数据信息的发送方法开始",Toast.LENGTH_SHORT).show(); StringBuilder textEntity = new StringBuilder(); for (Map.Entry<String, String> entry : params.entrySet()) {//构造文本类型参数的实体数据 textEntity.append("--"); textEntity.append(boundary); textEntity.append("\r\n"); textEntity.append("Content-Disposition: form-data; name=\""+entry.getKey()+"\"\r\n\r\n"); textEntity.append(entry.getValue()); textEntity.append("\r\n"); //计算传输给服务器的实体数据总长度 } String accept = "Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*\r\n"; dos.write(accept.getBytes()); //把所有文本类型的实体数据发送出来 dos.write(textEntity.toString().getBytes()); Toast.makeText(this, "数据信息的发送方法结束",Toast.LENGTH_SHORT).show(); Toast.makeText(this, "开始上传images",Toast.LENGTH_SHORT).show(); /*文件图片的发送方式*/ fin = new FileInputStream(uploadFile); //--------------------开始伪造上传images.jpg的信息----------------------------------- /*String fileMeta = "--" + boundary + lineEnd + "Content-Disposition: form-data; name=\"file\"; filename=\"" + uploadFile + "\"" + lineEnd + "Content-Type: image/jpeg" + lineEnd + lineEnd;*/ String fileMeta = "--" + boundary + lineEnd + "Content-Disposition: form-data; name=\"file\"; filename=\"" + uploadFile + "\"" + lineEnd + "Content-Type:video/mpeg4" + lineEnd + lineEnd; // 向流中写入fileMeta dos.write(fileMeta.getBytes()); // 取得本地图片的字节流，向url流中写入图片字节流 byte[] bytes = new byte[1024]; int len = 0; while ((len = fin.read(bytes)) != -1) { dos.write(bytes, 0, len); } dos.writeBytes(lineEnd+lineEnd); //--------------------伪造images.jpg信息结束----------------------------------- Toast.makeText(this, "结束上传",Toast.LENGTH_SHORT).show(); // POST Data结束 dos.writeBytes("--" + boundary + "--"); // Server端返回的信息 System.out.println("" + connection.getResponseCode()); System.out.println("" + connection.getResponseMessage()); if (dos != null) { dos.flush(); dos.close(); } Toast.makeText(this, "upload success-----------------------------------------",Toast.LENGTH_SHORT).show(); } catch (Exception e) { e.printStackTrace(); Toast.makeText(this, "upload fail",Toast.LENGTH_SHORT).show(); } } }