Android 安卓HTTP-POST
我是HTTP-POST的新手。我有一个可以放置Android 安卓HTTP-POST,android,http,http-post,json-simple,Android,Http,Http Post,Json Simple,我是HTTP-POST的新手。我有一个可以放置 { "USR": { "fun":"validarUsuario", "txtUser":"123", "md5Passwd":"123" } } 我得到的回应是 {"success":"true","nombre":"test"} 我想知道如何在我的Android应用程序中做到这一点。有人能指
{
"USR":
{
"fun":"validarUsuario",
"txtUser":"123",
"md5Passwd":"123"
}
}
我得到的回应是
{"success":"true","nombre":"test"}
我想知道如何在我的Android应用程序中做到这一点。有人能指引我吗
DefaultHttpClient httpClient=new DefaultHttpClient();
HttpPost httpPost =new HttpPost("http://otu-git.dyndns.ws/pvm_srv/echo_json.html");
HttpResponse response;
StringEntity se;
JSONObject json =new JSONObject();
try {
json.put("fun", "validarUsuario");
json.put("txtUser", "123");
json.put("md5Passwd", "123");
se=new StringEntity(json.toString());
httpPost.setEntity(se);
response=httpClient.execute(httpPost);
Log.i(tag, "JSON "+response.toString());
} 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();
}
这是我的密码。你能检查一下它是否正确吗?我已为该应用程序添加了Internet权限
@我得到了以下错误
11-05 14:02:38.489: E/AndroidRuntime(8844): FATAL EXCEPTION: main
11-05 14:02:38.489: E/AndroidRuntime(8844): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dhiraj.mpos/com.dhiraj.mpos.LoginActivity}: android.os.NetworkOnMainThreadException
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2049)
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2083)
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.app.ActivityThread.access$600(ActivityThread.java:134)
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1233)
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.os.Handler.dispatchMessage(Handler.java:99)
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.os.Looper.loop(Looper.java:137)
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.app.ActivityThread.main(ActivityThread.java:4697)
11-05 14:02:38.489: E/AndroidRuntime(8844): at java.lang.reflect.Method.invokeNative(Native Method)
11-05 14:02:38.489: E/AndroidRuntime(8844): at java.lang.reflect.Method.invoke(Method.java:511)
11-05 14:02:38.489: E/AndroidRuntime(8844): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
11-05 14:02:38.489: E/AndroidRuntime(8844): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
11-05 14:02:38.489: E/AndroidRuntime(8844): at dalvik.system.NativeStart.main(Native Method)
11-05 14:02:38.489: E/AndroidRuntime(8844): Caused by: android.os.NetworkOnMainThreadException
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1119)
11-05 14:02:38.489: E/AndroidRuntime(8844): at java.net.InetAddress.lookupHostByName(InetAddress.java:441)
11-05 14:02:38.489: E/AndroidRuntime(8844): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:243)
11-05 14:02:38.489: E/AndroidRuntime(8844): at java.net.InetAddress.getAllByName(InetAddress.java:220)
11-05 14:02:38.489: E/AndroidRuntime(8844): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
11-05 14:02:38.489: E/AndroidRuntime(8844): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
11-05 14:02:38.489: E/AndroidRuntime(8844): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
11-05 14:02:38.489: E/AndroidRuntime(8844): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
11-05 14:02:38.489: E/AndroidRuntime(8844): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
11-05 14:02:38.489: E/AndroidRuntime(8844): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
11-05 14:02:38.489: E/AndroidRuntime(8844): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
11-05 14:02:38.489: E/AndroidRuntime(8844): at com.dhiraj.mpos.LoginActivity.insert(LoginActivity.java:88)
11-05 14:02:38.489: E/AndroidRuntime(8844): at com.dhiraj.mpos.LoginActivity.onCreate(LoginActivity.java:45)
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.app.Activity.performCreate(Activity.java:4539)
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
11-05 14:02:38.489: E/AndroidRuntime(8844): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2013)
`
将此客户端用于您的目的。它是httpclient的最佳库之一您需要先创建JSONObject才能请求,例如
JSONObject obj = new JSONObject();
obj.put("fun", "validarUsuario");
obj.put( "txtUser",123);
obj.put( "md5Passwd",123);
并使用下面的方法将上述obj传递给您的JSONOBJ以获得响应
public JSONObject insert(JSONObject YourJsonObj)
{
HttpPost postRequest = new HttpPost(YourURLString);
StringEntity entity = new StringEntity(YourJsonObj.toString());
entity.setContentType("application/json");
postRequest.setHeader("Content-Type", "application/json");
postRequest.setHeader("Accept", "application/json");
postRequest.setEntity(entity);
HttpResponse response = client.execute(postRequest);
int status = response.getStatusLine().getStatusCode();
if (status == 200) {
HttpEntity e = response.getEntity();
String data = EntityUtils.toString(e);
JSONObject obj = new JSONObject(data);
return obj;
} else {
return null;
}
}
. 在google上搜索或者在stackoverflow上搜索,你会看到相关的帖子,我认为你在主线程中使用了这种方法。尝试Android服务或异步任务。我得到以下响应。不象预期的那样org.apache.http.message。BasicHttpResponse@4140cbe0`+1不错。我正在寻找一个类似的库,我的搜索到此结束,谢谢…缺少HttpClient=new DefaultHttpClient();在方法的开头。