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我有一個問題，而試圖從我的應用程序發送到服務器的圖像。我知道它在哪裏崩潰。 這些都是我的文件：應用程序崩潰嘗試發送圖像的Android
RestClient.java
package edu.gvsu.cis.masl.camerademo;
import android.util.Log;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
public class RestClient {
private static final int DEFAULT_CONNECTION_TIMEOUT = 30000;
private static final int DEFAULT_RECEIVE_TIMEOUT = 60000;
//private static final String AUTHORIZATION = "Authorization";
private static final String CONTENT_TYPE = "Content-Type";
private static final String JSON_CONTENT_TYPE = "application/json; charset=utf-8";
private static final String UTF8 = "UTF8";
private static final String DEBUG = RestClient.class.getName();
public Result put(String url, String json) {
return executeRequest(new HttpPut(url), json, DEFAULT_RECEIVE_TIMEOUT);
}
private Result executeRequest(HttpEntityEnclosingRequestBase request, String json, int timeout) {
request.addHeader(CONTENT_TYPE, JSON_CONTENT_TYPE);
try {
request.setEntity(new StringEntity(json,UTF8));
}catch(UnsupportedEncodingException e) {
Log.e(DEBUG, e.getMessage());
return Result.error();
}
return executeRequest(request,timeout);
}
private Result executeRequest(HttpUriRequest request, int timeout) {
int responseCode = -1;
String responseContent = null;
//request.addHeader(AUTHORIZATION, encodeCredentials(userCredentials));
HttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams, DEFAULT_CONNECTION_TIMEOUT);
HttpConnectionParams.setSoTimeout(httpParams, timeout);
HttpClient client = new DefaultHttpClient(httpParams);
try {
HttpResponse response = client.execute(request);
HttpEntity entity = response.getEntity();
responseCode = response.getStatusLine().getStatusCode();
if(entity!=null) {
responseContent = EntityUtils.toString(entity, UTF8);
}
}catch(IOException e) {
Log.e(DEBUG, e.getMessage());
return Result.error();
}
return new Result(responseCode, responseContent);
}
}
ImageDTO.java：
public class ImageDTO {
public String id;
public String image;
public ImageDTO(String id, String image) {
this.id = id;
this.image=image;
}
}
Result.java：
package edu.gvsu.cis.masl.camerademo;
public class Result {
public static final int COMMUNICATION_ERROR = -1;
public static final int OK_SUCCESS = 200;
public static final int BAD_REQUEST = 400;
public static final int UNAUTHORIZED = 401;
public static final int NOT_FOUND = 404;
public static final int INTERNAL_SERVER_ERROR = 500;
private int responseCode;
private String resultContent;
public Result(int responseCode, String resultContent) {
this.responseCode = responseCode;
this.resultContent = resultContent;
}
public int getResponseCode() {
return this.responseCode;
}
public String getResultContent() {
return this.resultContent;
}
public static Result error() {
return new Result(COMMUNICATION_ERROR, "ERROR");
}
}
和代碼在我的與此相關的活動：
String strBase64 = Base64.encodeToString(imageBytes, Base64.DEFAULT);
int id = 1;
ImageDTO imdto = new ImageDTO(Integer.toString(id), strBase64);
RestClient client = new RestClient();
String jsonDTO = new Gson().toJson(imdto);
Log.i("Pablo", jsonDTO);
Result result = client.put(SERVICE_URL, jsonDTO);
if (result.getResponseCode() != 200) Log.i("****************", "Oups! Smth went wrong!!!");
else Log.i("****************", "Response = 200 , Connection Established :D");
我的應用程序在RestClient.java失敗，在這條線：
HttpResponse response = client.execute(request);
我不知道爲什麼會失敗，因爲RESTClient實現和結果文件工作在其他項目的罰款。
我也不得不說，Base64的代碼是不完整的顯示在IntelliJ IDEA的。如果我詢問最新的字符，它是正確的，但它不能以日誌模式顯示它們。
這是示出日誌中的失敗：
ERROR/AndroidRuntime(27028): FATAL EXCEPTION: main
Process: edu.gvsu.cis.masl.camerademo, PID: 27028
java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1888, result=-1, data=null} to activity {edu.gvsu.cis.masl.camerademo/edu.gvsu.cis.masl.camerademo.MyCameraActivity}: android.os.NetworkOnMainThreadException
at android.app.ActivityThread.deliverResults(ActivityThread.java:3365)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3408)
at android.app.ActivityThread.access$1300(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1244)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.os.NetworkOnMainThreadException
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)
at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
at java.net.InetAddress.getAllByName(InetAddress.java:214)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
at edu.gvsu.cis.masl.camerademo.RestClient.executeRequest(RestClient.java:61)
at edu.gvsu.cis.masl.camerademo.RestClient.executeRequest(RestClient.java:46)
at edu.gvsu.cis.masl.camerademo.RestClient.put(RestClient.java:33)
at edu.gvsu.cis.masl.camerademo.MyCameraActivity.onActivityResult(MyCameraActivity.java:78)
at android.app.Activity.dispatchActivityResult(Activity.java:5423)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3361)
... 11 more
發佈logcat –
補充，我認爲這是你的意思 – Biribu
使用AsyncTask將圖像發送到服務器。 –