老规矩废话不多说，直接入主题

注：wcf 使用rest风格，传递json数据，图片是经过base64编码，android 使用common-codec-1.5.jar 进行base64编码

服务器端

wcf接口：

namespace Test

{

// 注意: 如果更改此处的接口名称 "IService1"，也必须更新 Web.config 中对 "IService1" 的引用。

[ServiceContract]

public interface IService1

{

// 任务: 在此处添加服务操作

[OperationContract]

[WebInvoke(Method = "POST", UriTemplate = "update_pictrue",BodyStyle=WebMessageBodyStyle.WrappedRequest,RequestFormat=WebMessageFormat.Json,ResponseFormat=WebMessageFormat.Json)]

string update_pictrue(string name, string content, string type);

[OperationContract]

[WebInvoke(Method = "POST", UriTemplate = "down_pictrue", BodyStyle = WebMessageBodyStyle.WrappedRequest, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]

string down_pictrue(string name);

}

}

接口实现：

namespace Test

{

// 注意: 如果更改此处的类名“Service1”，也必须更新 Web.config 和关联的 .svc 文件中对“Service1”的引用。

public class Service1 : IService1

{

#region IService1 成员

public string update_pictrue(string name,string content, string type)

{

// throw new NotImplementedException();

if (type != ".jpg" && type != ".gif")

{

return "格式不正确";

}

else

{

string imgFilePath = @"F:\Wcf_teach\pictrue_update_down\Test\update_pictrue\" + name;

if (!File.Exists(imgFilePath))

{

try

{

byte[] ms_content = Convert.FromBase64String(content);

FileStream fs = File.Open(imgFilePath, FileMode.OpenOrCreate);

fs.Write(ms_content, 0, ms_content.Length);

fs.Close();

return "上传成功";

}

catch (Exception ex)

{

return "出现异常";

}

}

else

{

return "上传失败";

}

}

}

public string down_pictrue(string name)

{

// throw new NotImplementedException();

string imgFilePath = @"F:\Wcf_teach\pictrue_update_down\Test\update_pictrue\" + name;

if (File.Exists(imgFilePath))

{

System.IO.FileStream fs = new System.IO.FileStream(imgFilePath, System.IO.FileMode.Open);

int i = (int)fs.Length;

byte[] content = new byte[i];

fs.Read(content, 0, i);

string result = Convert.ToBase64String(content);

fs.Close();

return result;

}

else

{

throw new Exception("没有该文件出现异常");

}

}

#endregion

}

}

客户端

public class pictrue_update_down extends Activity {

private Button update_btn;

private Button down_btn;

private ImageView img_img;

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

findAll();

bind();

}

public void findAll() {

update_btn = (Button) this.findViewById(R.id.update_btn);

down_btn = (Button) this.findViewById(R.id.down_btn);

img_img = (ImageView) this.findViewById(R.id.img_img);

}

public void bind() {

update_btn.setOnClickListener(mylistener);

down_btn.setOnClickListener(mylistener);

}

private View.OnClickListener mylistener = new OnClickListener() {

public void onClick(View v) {

// TODO Auto-generated method stub

switch (v.getId()) {

case R.id.update_btn:

Thread th1 = new Thread(new mythread());

th1.start();

break;

case R.id.down_btn:

Thread th2 = new Thread(new mythread_down());

th2.start();

break;

default:

break;

}

}

};

Handler hd = new Handler() {

@Override

public void handleMessage(Message msg) {

// TODO Auto-generated method stub

// super.handleMessage(msg);

if (msg.what == 123) {

String jason = msg.obj.toString();

String filepath = Environment.getExternalStorageDirectory()

+ File.separator + jason;

Bitmap bitmap1 = BitmapFactory.decodeFile(filepath);

img_img.setImageBitmap(bitmap1);

}

}

};

class mythread_down implements Runnable {

public void run() {

// TODO Auto-generated method stub

HttpClient hc = new DefaultHttpClient();

HttpPost hp = new HttpPost(

"http://192.168.1.229/Test/service1.svc/down_pictrue");

HttpResponse hr = null;

JSONObject jo1 = new JSONObject();

try {

jo1.put("name", "999.jpg");

StringEntity se = new StringEntity(jo1.toString(), HTTP.UTF_8);

se.setContentType("application/json");

hp.setEntity(se);

hr = hc.execute(hp);

} catch (JSONException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (UnsupportedEncodingException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (ClientProtocolException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

String strResp = null;

if (hr.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {

try {

strResp = EntityUtils.toString(hr.getEntity());

File f = new File("//sdcard//999.jpg");

if (!f.exists()) {

f.createNewFile();

FileOutputStream fos=new FileOutputStream(f);

byte[] content= Base64.decodeBase64(strResp.getBytes());

fos.write(content);

fos.flush();

Message msg=hd.obtainMessage(123);

msg.obj="//sdcard//999.jpg";

hd.sendMessage(msg);

}

} catch (ParseException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}else {

Toast.makeText(pictrue_update_down.this, "下载失败",

Toast.LENGTH_LONG).show();

}

}

}

class mythread implements Runnable {

public void run() {

// TODO Auto-generated method stub

HttpClient hc = new DefaultHttpClient();

HttpPost hp = new HttpPost(

"http://192.168.1.229/Test/service1.svc/update_pictrue");

HttpResponse hr;

String path = "//sdcard//999.jpg";

File f = new File(path);

if (f.exists()) {

// System.out.println("successful");

try {

int ig = (int) f.length();

byte[] content = new byte[ig];

FileInputStream fis;

fis = new FileInputStream(f);

fis.read(content, 0, ig);

String jason = new String(Base64.encodeBase64(content));

JSONObject jo1 = new JSONObject();

jo1.put("name", "999.jpg");

jo1.put("content", jason);

jo1.put("type", ".jpg");

StringEntity se = new StringEntity(jo1.toString(),

HTTP.UTF_8);

se.setContentType("application/json");

hp.setEntity(se);

hr = hc.execute(hp);

String strResp = null;

if (hr.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {

strResp = EntityUtils.toString(hr.getEntity());

} else {

strResp = "$no_found_date$";

}

Toast.makeText(pictrue_update_down.this, strResp,

Toast.LENGTH_LONG).show();

} catch (UnsupportedEncodingException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (ClientProtocolException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (JSONException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} finally {

hp.abort();

}

}

}

}

}