java.lang.NoSuchMethodError org.apache.http.client.utils.URLEncodedUtils.encPath [英] java.lang.NoSuchMethodError org.apache.http.client.utils.URLEncodedUtils.encPath
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问题描述
我正在尝试使用Apache HTTP Client库在Android中进行GET请求，但是当我尝试进行请求时，我正在获取以下堆栈跟踪信息.
I'm trying to make a GET request in Android using Apache HTTP Client library but I'm getting the following stacktrace back when I try to make a request.
06-17 16:19:58.891 10605-10605/com.myapp.test.android E/SELinux﹕ selinux_android_seapp_context_reload: seapp_contexts file is loaded from /data/security/spota/seapp_contexts
06-17 16:19:58.891 10605-10605/com.myapp.test.android D/dalvikvm﹕ Late-enabling CheckJNI
06-17 16:19:59.001 10605-10605/com.myapp.test.android I/dalvikvm﹕ Could not find method org.apache.http.client.utils.URLEncodedUtils.encPath, referenced from method org.apache.http.client.utils.URIBuilder.encodePath
06-17 16:19:59.001 10605-10605/com.myapp.test.android W/dalvikvm﹕ VFY: unable to resolve static method 2455: Lorg/apache/http/client/utils/URLEncodedUtils;.encPath (Ljava/lang/String;Ljava/nio/charset/Charset;)Ljava/lang/String;
06-17 16:19:59.001 10605-10605/com.myapp.test.android D/dalvikvm﹕ VFY: replacing opcode 0x71 at 0x0002
06-17 16:19:59.001 10605-10605/com.myapp.test.android I/dalvikvm﹕ Could not find method org.apache.http.client.utils.URLEncodedUtils.encUric, referenced from method org.apache.http.client.utils.URIBuilder.encodeUric
06-17 16:19:59.001 10605-10605/com.myapp.test.android W/dalvikvm﹕ VFY: unable to resolve static method 2456: Lorg/apache/http/client/utils/URLEncodedUtils;.encUric (Ljava/lang/String;Ljava/nio/charset/Charset;)Ljava/lang/String;
06-17 16:19:59.001 10605-10605/com.myapp.test.android D/dalvikvm﹕ VFY: replacing opcode 0x71 at 0x0002
06-17 16:19:59.001 10605-10605/com.myapp.test.android I/dalvikvm﹕ Could not find method org.apache.http.client.utils.URLEncodedUtils.format, referenced from method org.apache.http.client.utils.URIBuilder.encodeUrlForm
06-17 16:19:59.001 10605-10605/com.myapp.test.android W/dalvikvm﹕ VFY: unable to resolve static method 2461: Lorg/apache/http/client/utils/URLEncodedUtils;.format (Ljava/lang/Iterable;Ljava/nio/charset/Charset;)Ljava/lang/String;
06-17 16:19:59.001 10605-10605/com.myapp.test.android D/dalvikvm﹕ VFY: replacing opcode 0x71 at 0x0002
06-17 16:19:59.001 10605-10605/com.myapp.test.android I/dalvikvm﹕ Could not find method org.apache.http.client.utils.URLEncodedUtils.encUserInfo, referenced from method org.apache.http.client.utils.URIBuilder.encodeUserInfo
06-17 16:19:59.001 10605-10605/com.myapp.test.android W/dalvikvm﹕ VFY: unable to resolve static method 2457: Lorg/apache/http/client/utils/URLEncodedUtils;.encUserInfo (Ljava/lang/String;Ljava/nio/charset/Charset;)Ljava/lang/String;
06-17 16:19:59.001 10605-10605/com.myapp.test.android D/dalvikvm﹕ VFY: replacing opcode 0x71 at 0x0002
06-17 16:19:59.001 10605-10605/com.myapp.test.android I/dalvikvm﹕ Could not find method org.apache.http.client.utils.URLEncodedUtils.parse, referenced from method org.apache.http.client.utils.URIBuilder.parseQuery
06-17 16:19:59.001 10605-10605/com.myapp.test.android W/dalvikvm﹕ VFY: unable to resolve static method 2465: Lorg/apache/http/client/utils/URLEncodedUtils;.parse (Ljava/lang/String;Ljava/nio/charset/Charset;)Ljava/util/List;
06-17 16:19:59.001 10605-10605/com.myapp.test.android D/dalvikvm﹕ VFY: replacing opcode 0x71 at 0x0008
06-17 16:19:59.001 10605-10605/com.myapp.test.android W/dalvikvm﹕ Exception Ljava/lang/NoSuchMethodError; thrown while initializing Lcom/myapp/test/android/IHeart;
06-17 16:19:59.001 10605-10605/com.myapp.test.android D/AndroidRuntime﹕ Shutting down VM
06-17 16:19:59.001 10605-10605/com.myapp.test.android W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x41849898)
06-17 16:19:59.001 10605-10605/com.myapp.test.android E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.NoSuchMethodError: org.apache.http.client.utils.URLEncodedUtils.encPath
at org.apache.http.client.utils.URIBuilder.encodePath(URIBuilder.java:175)
at org.apache.http.client.utils.URIBuilder.buildString(URIBuilder.java:136)
at org.apache.http.client.utils.URIBuilder.build(URIBuilder.java:104)
at com.myapp.test.android.IHeart.makeGetRequest(IHeart.java:129)
at com.myapp.test.android.IHeart.getMarketId(IHeart.java:119)
at com.myapp.test.android.IHeart.setMarketId(IHeart.java:70)
at com.myapp.test.android.IHeart.initializeIHeart(IHeart.java:60)
at com.myapp.test.android.IHeart.<init>(IHeart.java:50)
at com.myapp.test.android.IHeart.<clinit>(IHeart.java:35)
at com.myapp.test.android.MainActivity.onCreate(MainActivity.java:21)
at android.app.Activity.performCreate(Activity.java:5369)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1104)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2257)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2348)
at android.app.ActivityThread.access$700(ActivityThread.java:159)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5414)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
at dalvik.system.NativeStart.main(Native Method)
因此，当应用程序尝试在我的代码中创建URI对象时，该应用程序似乎崩溃了.特别是当它尝试解析.setPath(path)代码段时.
So it looks like the app crashes when it tries to create a URI object in my code. In particular, when it tries to parse the .setPath(path) piece of code.
// Make the GET request and get the response JSON.
return makeGetRequest(
SCHEME,
HOST,
PATH_MARKET,
params
);
...
private JSONObject makeGetRequest(String scheme, String host, String path, List<NameValuePair> params) {
try {
URI uri = new URIBuilder()
.setScheme(scheme)
.setHost(host)
.setPath(path) // <-- Where the crash is happening!
.setParameters(params)
.build();
这是我的代码的样子.
MainActivity.java
公共类MainActivity扩展了活动{
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
IHeart.getInstance();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(com.myapp.test.android.R.menu.main, menu);
return true;
}
}
IHeart.java
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.AsyncTask;
import android.util.Log;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutionException;
public class IHeart {
private static final String TAG = IHeart.class.getSimpleName();
private static IHeart instance = new IHeart();
private static final String SCHEME = "https";
private static final String HOST = "api2.iheart.com";
private static final String PATH_MARKET = "/api/v2/content/markets";
private long mMarketId;
public static IHeart getInstance() {
return instance;
}
private IHeart() {
initializeIHeart();
}
private void initializeIHeart() {
setMarketId();
}
private void setMarketId() {
try {
JSONObject response = getMarketId("40.7127837", "-74.005941");
if (response != null) {
final String KEY_HITS = "hits";
final String KEY_MARKET_ID = "marketId";
if (response.isNull(KEY_HITS)) {
Log.e(TAG, KEY_HITS + " key doesn't exist in response JSON.");
} else {
JSONArray hitsArray = response.getJSONArray(KEY_HITS);
if (hitsArray == null || hitsArray.length() == 0 || hitsArray.isNull(0)) {
Log.d(TAG, "Hits array is null/empty.");
} else {
JSONObject firstHitsObject = hitsArray.getJSONObject(0);
if (firstHitsObject == null || firstHitsObject.isNull(KEY_MARKET_ID)) {
Log.d(TAG, "Market ID value is null/empty/missing in JSON.");
} else {
mMarketId = firstHitsObject.getInt(KEY_MARKET_ID);
Log.d(TAG, "Market ID = " + mMarketId);
}
}
}
} else {
Log.e(TAG, "Response JSON was null.");
}
} catch (JSONException e) {
e.printStackTrace();
}
}
private JSONObject getMarketId(String latitude, String longitude) throws JSONException {
// Define the params
ArrayList<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("limit", "10"));
params.add(new BasicNameValuePair("lat", latitude));
params.add(new BasicNameValuePair("lng", longitude));
// Make the GET request and get the response JSON.
return makeGetRequest(
SCHEME,
HOST,
PATH_MARKET,
params
);
}
private JSONObject makeGetRequest(String scheme, String host, String path, List<NameValuePair> params) {
try {
URI uri = new URIBuilder()
.setScheme(scheme)
.setHost(host)
.setPath(path)
.setParameters(params)
.build();
Log.d(TAG, "URI = " + uri);
// Make asyn REST call and return resulting in JSON.
return new getRequestTask().execute(uri).get();
} catch (URISyntaxException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
return null;
}
private class getRequestTask extends AsyncTask<URI, Void, JSONObject> {
@Override
protected JSONObject doInBackground(URI... params) {
for (URI uri : params) {
try {
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpGet httpGet = new HttpGet(uri);
CloseableHttpResponse response = httpClient.execute(httpGet);
// Read the response
HttpEntity httpEntity = response.getEntity();
// Create and return JSONObject
if (httpEntity != null) {
String json = EntityUtils.toString(httpEntity);
return new JSONObject(json);
}
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
}
return null;
}
}
}
我已经创建了另一个项目，但是这次是Java应用程序，并且能够很好地执行此代码.特别是，Java应用程序遇到以下代码时不会崩溃，就像在Android应用程序中一样.
I've create another project, but this time as a Java application, and was able to execute this code just fine. In particular, the Java application didn't crash when it hit the following bit of code like it did in the Android app.
// Make the GET request and get the response JSON.
return makeGetRequest(
SCHEME,
HOST,
PATH_MARKET,
params
);
当我通过Android项目进行构建时，我也没有任何编译错误.我实际上可以运行该应用程序，但是它立即崩溃.
I'm also getting no compilation errors when I build by Android project. I'm actually able to run the app but it crashes right away.
任何指针将不胜感激.
如果有帮助，这是我对Apache HTTP Client的Maven依赖项:
If it helps, here's my Maven dependency for the Apache HTTP Client:
pom.xml
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.3.4</version>
</dependency>
推荐答案
Android在其SDK中包含了过时的Apache HttpClient实现 如果添加较新的Apache Http Client，则会导致冲突
Android include outdated Apache HttpClient implementation in their SDK which make it conflict if you add newer Apache Http Client
您应改为使用适用于Android的HttpClient
发布了Google Android 1.0，其中包含Apache的Beta-BETA快照 HttpClient.与第一个Android版本Apache相吻合 HttpClient 4.0 API必须过早冻结，而许多 接口和内部结构仍未完全解决. [...]适用于Android的Apache HttpClient 4.3端口旨在解决 通过提供与Google兼容的官方版本来解决这种情况 Android.
Google Android 1.0 was released with a pre-BETA snapshot of Apache HttpClient. To coincide with the first Android release Apache HttpClient 4.0 APIs had to be frozen prematurely, while many of interfaces and internal structures were still not fully worked out. [...] Apache HttpClient 4.3 port for Android is intended to remedy the situation by providing official releases compatible with Google Android.
使用此gradle依赖项配置:
Use this gradle dependency configuration:
dependencies {
/* ... */
compile 'org.apache.httpcomponents:httpclient-android:4.3.3'
}
我不是maven用户，但是maven配置应该是这样的
I'm not a maven user, but maven configuration should be something like this
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient-android</artifactId>
<version>4.3.3</version>
</dependency>
您真的要使用4.3.3，因为4.3.4的android端口尚不可用.
You really want to use 4.3.3 since android port of 4.3.4 is not available yet.
要调用HTTP方法，请稍稍更改代码(注意HttpGetHC4)
To call a HTTP method, slightly change your code (notice HttpGetHC4)
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpGetHC4 httpGet = new HttpGetHC4(url);
CloseableHttpResponse response = httpClient.execute(httpGet);
它使用URIBuilder的不同实现，因此无需更改客户端代码.
It use different implementation of URIBuilder so client code need not changed.
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