是的，我知道。我和其他人之前曾问过类似的问题。不过，我正在寻找有关我的具体问题的帮助。我已经将这段代码从其他答案中逐字复制，所以我在这里做错了什么？
public void SendName(View v){
EditText name = (EditText) findViewById(R.id.name);
String nombre = name.getText().toString();
String parameters = "name="+nombre;
try{
URL url2 = new URL("*****"); //I've got a correct URL here
HttpURLConnection connection = (HttpURLConnection) url2.openConnection();
connection.setReadTimeout(15000);
connection.setConnectTimeout(15000);
connection.setRequestMethod("POST");
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestProperty("Content-type", "application/x-www-form-urlencoded");
OutputStream os = connection.getOutputStream();
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
writer.write(parameters);
writer.close();
os.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
＆＃34; SendName＆＃34;函数从布局中的按钮调用onClick。每次我点击该按钮，我的应用程序崩溃。是什么给了什么？
如此说日志：
12-20 09:56:05.630 17593-17593/? D/dalvikvm: Late-enabling CheckJNI
12-20 09:56:05.690 17593-17593/blacktentdigital.com.bintheredumpthatatl D/HyLog: I : /data/font/config/sfconfig.dat, No such file or directory (2)
12-20 09:56:05.690 17593-17593/blacktentdigital.com.bintheredumpthatatl D/HyLog: I : /data/font/config/dfactpre.dat, No such file or directory (2)
12-20 09:56:05.690 17593-17593/blacktentdigital.com.bintheredumpthatatl D/HyLog: I : /data/font/config/sfconfig.dat, No such file or directory (2)
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl I/dalvikvm: Could not find method android.view.Window$Callback.onProvideKeyboardShortcuts, referenced from method android.support.v7.view.WindowCallbackWrapper.onProvideKeyboardShortcuts
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to resolve interface method 19512: Landroid/view/Window$Callback;.onProvideKeyboardShortcuts (Ljava/util/List;Landroid/view/Menu;I)V
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: VFY: replacing opcode 0x72 at 0x0002
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to find class referenced in signature (Landroid/view/SearchEvent;)
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl I/dalvikvm: Could not find method android.view.Window$Callback.onSearchRequested, referenced from method android.support.v7.view.WindowCallbackWrapper.onSearchRequested
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to resolve interface method 19514: Landroid/view/Window$Callback;.onSearchRequested (Landroid/view/SearchEvent;)Z
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: VFY: replacing opcode 0x72 at 0x0002
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl I/dalvikvm: Could not find method android.view.Window$Callback.onWindowStartingActionMode, referenced from method android.support.v7.view.WindowCallbackWrapper.onWindowStartingActionMode
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to resolve interface method 19518: Landroid/view/Window$Callback;.onWindowStartingActionMode (Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: VFY: replacing opcode 0x72 at 0x0002
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl I/dalvikvm: Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.widget.TintTypedArray.getChangingConfigurations
12-20 09:56:05.760 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to resolve virtual method 476: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
12-20 09:56:05.770 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: VFY: replacing opcode 0x6e at 0x0002
12-20 09:56:05.770 17593-17593/blacktentdigital.com.bintheredumpthatatl I/dalvikvm: Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.widget.TintTypedArray.getType
12-20 09:56:05.770 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to resolve virtual method 498: Landroid/content/res/TypedArray;.getType (I)I
12-20 09:56:05.770 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: VFY: replacing opcode 0x6e at 0x0008
12-20 09:56:05.820 17593-17593/blacktentdigital.com.bintheredumpthatatl I/dalvikvm: Could not find method android.widget.FrameLayout.startActionModeForChild, referenced from method android.support.v7.widget.ActionBarContainer.startActionModeForChild
12-20 09:56:05.820 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to resolve virtual method 19990: Landroid/widget/FrameLayout;.startActionModeForChild (Landroid/view/View;Landroid/view/ActionMode$Callback;I)Landroid/view/ActionMode;
12-20 09:56:05.820 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: VFY: replacing opcode 0x6f at 0x0002
12-20 09:56:05.830 17593-17593/blacktentdigital.com.bintheredumpthatatl I/dalvikvm: Could not find method android.content.Context.getColorStateList, referenced from method android.support.v7.content.res.AppCompatResources.getColorStateList
12-20 09:56:05.830 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to resolve virtual method 290: Landroid/content/Context;.getColorStateList (I)Landroid/content/res/ColorStateList;
12-20 09:56:05.830 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: VFY: replacing opcode 0x6e at 0x0006
12-20 09:56:05.840 17593-17593/blacktentdigital.com.bintheredumpthatatl I/dalvikvm: Could not find method android.content.res.Resources.getDrawable, referenced from method android.support.v7.widget.ResourcesWrapper.getDrawable
12-20 09:56:05.850 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to resolve virtual method 439: Landroid/content/res/Resources;.getDrawable (ILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
12-20 09:56:05.850 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: VFY: replacing opcode 0x6e at 0x0002
12-20 09:56:05.850 17593-17593/blacktentdigital.com.bintheredumpthatatl I/dalvikvm: Could not find method android.content.res.Resources.getDrawableForDensity, referenced from method android.support.v7.widget.ResourcesWrapper.getDrawableForDensity
12-20 09:56:05.850 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to resolve virtual method 441: Landroid/content/res/Resources;.getDrawableForDensity (IILandroid/content/res/Resources$Theme;)Landroid/graphics/drawable/Drawable;
12-20 09:56:05.850 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: VFY: replacing opcode 0x6e at 0x0002
12-20 09:56:05.860 17593-17593/blacktentdigital.com.bintheredumpthatatl E/dalvikvm: Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering
12-20 09:56:05.860 17593-17593/blacktentdigital.com.bintheredumpthatatl W/dalvikvm: VFY: unable to resolve instanceof 141 (Landroid/graphics/drawable/RippleDrawable;) in Landroid/support/v7/widget/AppCompatImageHelper;
12-20 09:56:05.860 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: VFY: replacing opcode 0x20 at 0x000c
12-20 09:56:05.910 17593-17593/blacktentdigital.com.bintheredumpthatatl D/dalvikvm: GC_FOR_ALLOC freed 227K, 6% free 4729K/5016K, paused 16ms, total 16ms
12-20 09:56:05.980 17593-17593/blacktentdigital.com.bintheredumpthatatl I/Adreno-EGL: <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_KK_3.5_RB1.04.04.02.006.089_msm8610_KK_3.5_RB1__release_AU ()
OpenGL ES Shader Compiler Version: E031.24.00.06
Build Date: 01/30/14 Thu
Local Branch:
Remote Branch: quic/kk_3.5_rb1.21
Local Patches: NONE
Reconstruct Branch: AU_LINUX_ANDROID_KK_3.5_RB1.04.04.02.006.089 + NOTHING
12-20 09:56:06.010 17593-17593/blacktentdigital.com.bintheredumpthatatl D/OpenGLRenderer: Enabling debug mode 0
12-20 09:56:06.540 17593-17593/blacktentdigital.com.bintheredumpthatatl I/ActivityManager: Timeline: Activity_idle id: android.os.BinderProxy@41c00770 time:6431179
12-20 09:56:13.060 17593-17593/blacktentdigital.com.bintheredumpthatatl W/IInputConnectionWrapper: getTextBeforeCursor on inactive InputConnection
12-20 09:56:13.060 17593-17593/blacktentdigital.com.bintheredumpthatatl I/ActivityManager: Timeline: Activity_idle id: android.os.BinderProxy@41c00770 time:6437691
12-20 09:56:13.080 17593-17593/blacktentdigital.com.bintheredumpthatatl W/IInputConnectionWrapper: getTextBeforeCursor on inactive InputConnection
12-20 09:56:13.530 17593-17593/blacktentdigital.com.bintheredumpthatatl W/IInputConnectionWrapper: getTextBeforeCursor on inactive InputConnection
12-20 09:56:13.800 17593-17593/blacktentdigital.com.bintheredumpthatatl I/ActivityManager: Timeline: Activity_idle id: android.os.BinderProxy@41c00770 time:6438430
答案 0 :(得分：0)
// I had use this code it is working fine for me try this one
public class JsonParser {
String charset = "UTF-8";
HttpURLConnection conn;
DataOutputStream wr;
StringBuilder result;
URL urlObj;
JSONObject jObj = null;
StringBuilder sbParams;
String paramsString;
public JSONObject makeHttpRequest(String url, String method,
HashMap<String, String> params) {
sbParams = new StringBuilder();
int i = 0;
for (String key : params.keySet()) {
try {
if (i != 0){
sbParams.append("&");
}
sbParams.append(key).append("=")
.append(URLEncoder.encode(params.get(key), charset));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
i++;
}
if (method.equals("POST")) {
// request method is POST
try {
urlObj = new URL(url);
conn = (HttpURLConnection) urlObj.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Accept-Charset", charset);
conn.setReadTimeout(10000);
conn.setConnectTimeout(15000);
conn.connect();
paramsString = sbParams.toString();
wr = new DataOutputStream(conn.getOutputStream());
wr.writeBytes(paramsString);
wr.flush();
wr.close();
} catch (IOException e) {
e.printStackTrace();
}
}
else if(method.equals("GET")){
// request method is GET
if (sbParams.length() != 0) {
url += "?" + sbParams.toString();
}
try {
urlObj = new URL(url);
conn = (HttpURLConnection) urlObj.openConnection();
conn.setDoOutput(false);
conn.setRequestMethod("GET");
conn.setRequestProperty("Accept-Charset", charset);
conn.setConnectTimeout(15000);
conn.connect();
} catch (IOException e) {
e.printStackTrace();
}
}
try {
//Receive the response from the server
InputStream in = new BufferedInputStream(conn.getInputStream());
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
result = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
result.append(line);
}
Log.d("JSON Parser", "result: " + result.toString());
} catch (IOException e) {
e.printStackTrace();
}
conn.disconnect();
// try parse the string to a JSON object
try
{
jObj = new JSONObject(result.toString());
}
catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON Object
return jObj;
}
}