新建一个线程:
new Thread(uploadImageRunnable).start();
Runnable uploadImageRunnable = new Runnable() { @Override public void run() {
if(TextUtils.isEmpty(imgUrl)){ Toast.makeText(mContext, "还没有设置上传服务器的路径！", Toast.LENGTH_SHORT).show(); return; }
Map<String, String> textParams = new HashMap<String, String>(); Map<String, File> fileparams = new HashMap<String, File>();
try { // 创建一个URL对象 URL url = new URL(imgUrl); //imageUrl指向服务器端文件 textParams = new HashMap<String, String>(); fileparams = new HashMap<String, File>(); // 要上传的图片文件 File file = new File(picPath); //picPath为该图片或文件的uri fileparams.put("image", file); // 利用HttpURLConnection对象从网络中获取网页数据 HttpURLConnection conn = (HttpURLConnection) url.openConnection(); // 设置连接超时（记得设置连接超时,如果网络不好,Android系统在超过默认时间会收回资源中断操作） conn.setConnectTimeout(5000); // 设置允许输出（发送POST请求必须设置允许输出） conn.setDoOutput(true); // 设置使用POST的方式发送 conn.setRequestMethod("POST"); // 设置不使用缓存（容易出现问题） conn.setUseCaches(false); // 在开始用HttpURLConnection对象的setRequestProperty()设置,就是生成HTML文件头 conn.setRequestProperty("ser-Agent", "Fiddler"); // 设置contentType conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + NetUtil.BOUNDARY); OutputStream os = conn.getOutputStream(); DataOutputStream ds = new DataOutputStream(os); NetUtil.writeStringParams(textParams, ds); NetUtil.writeFileParams(fileparams, ds); NetUtil.paramsEnd(ds); // 对文件流操作完,要记得及时关闭 os.close(); // 服务器返回的响应吗 int code = conn.getResponseCode(); // 从Internet获取网页,发送请求,将网页以流的形式读回来 // 对响应码进行判断 if (code == 200) {// 返回的响应码200,是成功 // 得到网络返回的输入流 InputStream is = conn.getInputStream(); resultStr = NetUtil.readString(is); } else { Toast.makeText(mContext, "请求URL失败！", Toast.LENGTH_SHORT).show(); } } catch (Exception e) { e.printStackTrace(); } handler.sendEmptyMessage(0);// 执行耗时的方法之后发送消给handler }};
Handler handler = new Handler(new Handler.Callback() { //返回在服务器端的uri
@Override public boolean handleMessage(Message msg) { switch (msg.what) { case 0:
try { JSONObject jsonObject = new JSONObject(resultStr); // 服务端以字符串“1”作为操作成功标记 if (jsonObject.optString("status").equals("1")) {
// 用于拼接发布说说时用到的图片路径 // 服务端返回的JsonObject对象中提取到图片的网络URL路径 String imageUrl = jsonObject.optString("imageUrl"); // 获取缓存中的图片路径 Toast.makeText(mContext, imageUrl, Toast.LENGTH_SHORT).show(); } else { Toast.makeText(mContext, jsonObject.optString("statusMessage"), Toast.LENGTH_SHORT).show(); }
} catch (JSONException e) { e.printStackTrace(); } break; default: break; } return false; }});
NetUtil:
1 package sun.geoffery.uploadpic;
2
3 import java.io.ByteArrayOutputStream;
4 import java.io.DataOutputStream;
5 import java.io.File;
6 import java.io.FileInputStream;
7 import java.io.InputStream;
8 import java.net.URLEncoder;
9 import java.util.Iterator;
10 import java.util.Map;
11 import java.util.Set;
12
13 public class NetUtil {
14
15 // 一般来说用一个生成一个UUID的话，会可靠很多，这里就不考虑这个了
16 // 而且一般来说上传文件最好用BASE64进行编码，你只要用BASE64不用的符号就可以保证不冲突了。
17 // 尤其是上传二进制文件时，其中很可能有\r、\n之类的控制字符，有时还可能出现最高位被错误处理的问题，所以必须进行编码。
18 public static final String BOUNDARY = "--my_boundary--";
19
20 /**
21 * 普通字符串数据
22 * @param textParams
23 * @param ds
24 * @throws Exception
25 */
26 public static void writeStringParams(Map<String, String> textParams,
27 DataOutputStream ds) throws Exception {
28 Set<String> keySet = textParams.keySet();
29 for (Iterator<String> it = keySet.iterator(); it.hasNext();) {
30 String name = it.next();
31 String value = textParams.get(name);
32 ds.writeBytes("--" + BOUNDARY + "\r\n");
33 ds.writeBytes("Content-Disposition: form-data; name=\"" + name + "\"\r\n");
34 ds.writeBytes("\r\n");
35 value = value + "\r\n";
36 ds.write(value.getBytes());
37
38 }
39 }
40
41 /**
42 * 文件数据
43 * @param fileparams
44 * @param ds
45 * @throws Exception
46 */
47 public static void writeFileParams(Map<String, File> fileparams,
48 DataOutputStream ds) throws Exception {
49 Set<String> keySet = fileparams.keySet();
50 for (Iterator<String> it = keySet.iterator(); it.hasNext();) {
51 String name = it.next();
52 File value = fileparams.get(name);
53 ds.writeBytes("--" + BOUNDARY + "\r\n");
54 ds.writeBytes("Content-Disposition: form-data; name=\"" + name + "\"; filename=\""
55 + URLEncoder.encode(value.getName(), "UTF-8") + "\"\r\n");
56 ds.writeBytes("Content-Type:application/octet-stream \r\n");
57 ds.writeBytes("\r\n");
58 ds.write(getBytes(value));
59 ds.writeBytes("\r\n");
60 }
61 }
62
63 // 把文件转换成字节数组
64 private static byte[] getBytes(File f) throws Exception {
65 FileInputStream in = new FileInputStream(f);
66 ByteArrayOutputStream out = new ByteArrayOutputStream();
67 byte[] b = new byte[1024];
68 int n;
69 while ((n = in.read(b)) != -1) {
70 out.write(b, 0, n);
71 }
72 in.close();
73 return out.toByteArray();
74 }
75
76 /**
77 * 添加结尾数据
78 * @param ds
79 * @throws Exception
80 */
81 public static void paramsEnd(DataOutputStream ds) throws Exception {
82 ds.writeBytes("--" + BOUNDARY + "--" + "\r\n");
83 ds.writeBytes("\r\n");
84 }
85
86 public static String readString(InputStream is) {
87 return new String(readBytes(is));
88 }
89
90 public static byte[] readBytes(InputStream is) {
91 try {
92 byte[] buffer = new byte[1024];
93 int len = -1;
94 ByteArrayOutputStream baos = new ByteArrayOutputStream();
95 while ((len = is.read(buffer)) != -1) {
96 baos.write(buffer, 0, len);
97 }
98 baos.close();
99 return baos.toByteArray();
100 } catch (Exception e) {
101 e.printStackTrace();
102 }
103 return null;
104 }
105
106 }
FileUtil:
1 package sun.geoffery.uploadpic;
2
3 import java.io.ByteArrayOutputStream;
4 import java.io.File;
5 import java.io.FileOutputStream;
6 import java.io.IOException;
7 import java.text.SimpleDateFormat;
8 import java.util.Date;
9 import java.util.Locale;
10
11 import android.content.Context;
12 import android.graphics.Bitmap;
13 import android.graphics.Bitmap.CompressFormat;
14 import android.os.Environment;
15
16 public class FileUtil {
17
18 public static String saveFile(Context c, String fileName, Bitmap bitmap) {
19 return saveFile(c, "", fileName, bitmap);
20 }
21
22 public static String saveFile(Context c, String filePath, String fileName, Bitmap bitmap) {
23 byte[] bytes = bitmapToBytes(bitmap);
24 return saveFile(c, filePath, fileName, bytes);
25 }
26
27 public static byte[] bitmapToBytes(Bitmap bm) {
28 ByteArrayOutputStream baos = new ByteArrayOutputStream();
29 bm.compress(CompressFormat.JPEG, 100, baos);
30 return baos.toByteArray();
31 }
32
33 public static String saveFile(Context c, String filePath, String fileName, byte[] bytes) {
34 String fileFullName = "";
35 FileOutputStream fos = null;
36 String dateFolder = new SimpleDateFormat("yyyyMMdd", Locale.CHINA)
37 .format(new Date());
38 try {
39 String suffix = "";
40 if (filePath == null || filePath.trim().length() == 0) {
41 filePath = Environment.getExternalStorageDirectory() + "/JiaXT/" + dateFolder + "/";
42 }
43 File file = new File(filePath);
44 if (!file.exists()) {
45 file.mkdirs();
46 }
47 File fullFile = new File(filePath, fileName + suffix);
48 fileFullName = fullFile.getPath();
49 fos = new FileOutputStream(new File(filePath, fileName + suffix));
50 fos.write(bytes);
51 } catch (Exception e) {
52 fileFullName = "";
53 } finally {
54 if (fos != null) {
55 try {
56 fos.close();
57 } catch (IOException e) {
58 fileFullName = "";
59 }
60 }
61 }
62 return fileFullName;
63 }
64 }
服务器端文件：
using System;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Data.OleDb;
using System.Drawing;
using System.Data;
using MySQLDriverCS;
using System.Web.Script.Serialization;
using System.Web.Http;
using System.Text;
using System.Data.SqlClient;
namespace JoinFun.Controllers
{
public class UpLoadPictureController : Controller
{
//
// GET: /UpLoadPicture/
public String Index()
{
String userid = Request.Form["userid"];
HttpPostedFileBase postfile = Request.Files["image"];
String FileName = "D:\\JoinFun\\userpicture\\Userpicture" + userid + ".png";
postfile.SaveAs(FileName);
if (postfile != null)
{
String result = "{‘status‘:‘1‘,‘statusMessage‘:‘上传成功‘,‘imageUrl‘:‘http://......../JoinFunPicture/kenan.png‘}";
return result;
}
else{
String haha = "{‘status‘:‘1‘,‘statusMessage‘:‘上传成功‘,‘imageUrl‘:‘danteng‘}";
return haha;}
}
}
}
时间： 2024-08-24 08:49:17