[英]Problems including Apache HttpComponents in Android Gradle project
我嘗試使用build.gradle文件在我的應用程序中包含httpmime,所有內容編譯都很好。 相反,當應用程序嘗試實際使用MultipartEntityBuilder類時,日志上有一堆WARN級別消息說有問題。
以下是我的build.gradle對依賴項的摘錄:
compile('org.apache.httpcomponents:httpmime:4.+') { exclude module: "httpclient" }
以下是錯誤:
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;)
java類:
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); } }
[編輯]根據答案糾正依賴關系
compile('org.apache.httpcomponents:httpmime:4.+') { exclude module: "httpclient" } compile('org.apache.httpcomponents:httpcore:4.+') { exclude module: "httpclient" }
[第二次編輯]仍然有問題 - 現在這是其他缺失的位,但它可能是后端的問題:
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;
[另一個編輯]
在這種情況下,似乎最后遺漏的小部分對成功使用MultipartEntityBuilder沒有任何影響。
這就是我在學習中的表現。
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'
}
}
而在android內部
android{
packagingOptions {
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/NOTICE'
exclude 'META-INF/LICENSE'
}
}
您需要將httpcore-4.3.jar添加到您的java構建路徑中。 我有同樣的問題,添加這個jar后它就消失了。
compile group: 'org.apache.httpcomponents' , name: 'httpclient-android' , version: '4.3.5.1' compile('org.apache.httpcomponents:httpmime:4.3') {
exclude module: "httpclient" }
對於以下IMPORT語句,您可以將以上依賴項用於build.gradle (Module:app)到您的Project
import org.apache.http.entity.ContentType; import org.apache.http.entity.mime.MIME;
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