Java Android Gradle 项目中包含 Apache HttpComponents 的问题
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Problems including Apache HttpComponents in Android Gradle project
提问by A. Rager
I try to include httpmime in my application using the build.gradle file, and everything compiles fine. Instead, when the application tries to actually use the MultipartEntityBuilder class, there are a bunch of WARN level messages on the log saying that there are problems.
我尝试使用 build.gradle 文件在我的应用程序中包含 httpmime，一切都编译正常。相反，当应用程序尝试实际使用 MultipartEntityBuilder 类时，日志上会出现一堆 WARN 级别的消息，表明存在问题。
Here's the excerpt from my build.gradle for the dependency:
这是我的 build.gradle 中的依赖项摘录：
compile('org.apache.httpcomponents:httpmime:4.+') {
exclude module: "httpclient"
}
Here are the errors:
以下是错误：
10-09 13:39:37.367 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to resolve static field 6967 (DEFAULT_BINARY) in Lorg/apache/http/entity/ContentType; 10-09 13:39:37.367 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to find class referenced in signature (Lorg/apache/http/entity/ContentType;) 10-09 13:39:37.367 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to find class referenced in signature (Lorg/apache/http/entity/ContentType;) 10-09 13:39:37.367 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to resolve static field 6967 (DEFAULT_BINARY) in Lorg/apache/http/entity/ContentType; 10-09 13:39:37.367 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to find class referenced in signature (Lorg/apache/http/entity/ContentType;) 10-09 13:39:37.367 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to find class referenced in signature (Lorg/apache/http/entity/ContentType;) 10-09 13:39:37.367 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to resolve static field 6967 (DEFAULT_BINARY) in Lorg/apache/http/entity/ContentType; 10-09 13:39:37.367 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to find class referenced in signature (Lorg/apache/http/entity/ContentType;) 10-09 13:39:37.367 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to find class referenced in signature (Lorg/apache/http/entity/ContentType;) 10-09 13:39:37.377 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to resolve static method 19478: Lorg/apache/http/util/Args;.notNull (Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object; 10-09 13:39:37.377 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to resolve static field 6968 (DEFAULT_TEXT) in Lorg/apache/http/entity/ContentType; 10-09 13:39:37.377 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to find class referenced in signature (Lorg/apache/http/entity/ContentType;) 10-09 13:39:37.377 2409-2426/com.company.app W/dalvikvm﹕ VFY: unable to find class referenced in signature (Lorg/apache/http/entity/ContentType;)
The java class:
Java类：
import android.util.Log;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import org.apache.http.HttpEntity;
import org.apache.http.entity.mime.MultipartEntityBuilder;
public class FileUploader {
private final static String BOUNDARY = "__--__--__SERVETHEOVERMIND-__-_";
public void uploadFile(String targetUrl, MultipartEntityBuilder upload, UploadHandler after) {
Log.v("FileUploader", "Uploading to " + targetUrl);
HttpURLConnection con = null;
OutputStream os = null;
InputStream is = null;
try {
HttpEntity uploadEntity = upload.build();
URL postTo = new URL(targetUrl);
con = (HttpURLConnection) postTo.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + BOUNDARY);
con.setDoOutput(true);
con.setDoInput(true);
con.setUseCaches(false);
con.addRequestProperty("Connection", "Keep-Alive");
con.setRequestProperty("Content-length", String.valueOf(uploadEntity.getContentLength()));
os = con.getOutputStream();
uploadEntity.writeTo(os);
os.close();
con.connect();
is = con.getInputStream();
after.consumeUploadResponse(is);
con.disconnect();
} catch (IOException e) {
e.printStackTrace();
}
if(con != null) {
con.disconnect();
}
if(os != null) {
try {
os.close();
} catch (IOException e) {
Log.v("Uploader", "Closed output stream");
}
}
if(is != null) {
try {
is.close();
} catch (IOException e) {
Log.v("Uploader", "Closed input stream");
}
}
}
public interface UploadHandler {
public void consumeUploadResponse(InputStream stream);
}
}
[EDIT] Correct Dependencies, as per answer
[编辑] 正确的依赖关系，根据答案
compile('org.apache.httpcomponents:httpmime:4.+') {
exclude module: "httpclient"
}
compile('org.apache.httpcomponents:httpcore:4.+') {
exclude module: "httpclient"
}
[SECOND EDIT] Still having issues - now it's these other missing bits, but it might be problems on the backend:
[第二次编辑] 仍然有问题 - 现在是这些其他缺失的位，但它可能是后端的问题：
10-10 11:51:54.998 29597-29638/com.company.app W/dalvikvm﹕ VFY: unable to resolve static field 7465 (INSTANCE) in Lorg/apache/http/message/BasicHeaderValueParser; 10-10 11:51:54.998 29597-29638/com.company.app W/dalvikvm﹕ VFY: unable to resolve static field 7459 (INSTANCE) in Lorg/apache/http/message/BasicHeaderValueFormatter;
[YET ANOTHER EDIT]
[又一次编辑]
It seems the last little missing bits don't have any effect on the successful use of the MultipartEntityBuilder in this case.
在这种情况下，似乎最后一点丢失的位对 MultipartEntityBuilder 的成功使用没有任何影响。
采纳答案by Gary Kipnis
You need to add httpcore-4.3.jar to your java build path. I had the same problem and it's gone after adding this jar.
您需要将 httpcore-4.3.jar 添加到您的 java 构建路径。我有同样的问题，添加这个 jar 后它就消失了。
回答by Jonatan
This is how I did in my gradle..
这就是我在gradle中所做的。
dependencies {
compile ('org.apache.httpcomponents:httpmime:4.3'){
exclude group: 'org.apache.httpcomponents', module: 'httpclient'
}
compile ('org.apache.httpcomponents:httpcore:4.4.1'){
exclude group: 'org.apache.httpcomponents', module: 'httpclient'
}
}
And inside android
在安卓里面
android{
packagingOptions {
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/NOTICE'
exclude 'META-INF/LICENSE'
}
}
回答by Eshan Chattaraj
compile group: 'org.apache.httpcomponents' , name: 'httpclient-android' , version: '4.3.5.1' compile('org.apache.httpcomponents:httpmime:4.3') {
exclude module: "httpclient" }
You can use this above dependencies to the build.gradle(Module:app) to your Project for the following IMPORT statements
您可以将以上依赖项用于build.gradle(Module:app) 到您的项目的以下 IMPORT 语句
import org.apache.http.entity.ContentType; import org.apache.http.entity.mime.MIME;
导入 org.apache.http.entity.ContentType; 导入 org.apache.http.entity.mime.MIME；
