我的函数
public static String postFile(String url,String fileName, String userName) throws Exception {
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(url);
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
final File file = new File(fileName);
ContentBody cfile=new FileBody(file);
builder.addPart("file",cfile);
builder.addTextBody("userName", userName);
final HttpEntity yourEntity = builder.build();
class ProgressiveEntity implements HttpEntity {
@Override
public void consumeContent() throws IOException {
yourEntity.consumeContent();
}
@Override
public InputStream getContent() throws IOException,
IllegalStateException {
return yourEntity.getContent();
}
@Override
public Header getContentEncoding() {
return yourEntity.getContentEncoding();
}
@Override
public long getContentLength() {
return yourEntity.getContentLength();
}
@Override
public Header getContentType() {
return yourEntity.getContentType();
}
@Override
public boolean isChunked() {
return yourEntity.isChunked();
}
@Override
public boolean isRepeatable() {
return yourEntity.isRepeatable();
}
@Override
public boolean isStreaming() {
return yourEntity.isStreaming();
} // CONSIDER put a _real_ delegator into here!
@Override
public void writeTo(OutputStream outstream) throws IOException {
class ProxyOutputStream extends FilterOutputStream {
/**
* @author Stephen Colebourne
*/
public ProxyOutputStream(OutputStream proxy) {
super(proxy);
}
public void write(int idx) throws IOException {
out.write(idx);
}
public void write(byte[] bts) throws IOException {
out.write(bts);
}
public void write(byte[] bts, int st, int end) throws IOException {
out.write(bts, st, end);
}
public void flush() throws IOException {
out.flush();
}
public void close() throws IOException {
out.close();
}
} // CONSIDER import this class (and risk more Jar File Hell)
class ProgressiveOutputStream extends ProxyOutputStream {
public ProgressiveOutputStream(OutputStream proxy) {
super(proxy);
}
public void write(byte[] bts, int st, int end) throws IOException {
// FIXME Put your progress bar stuff here!
out.write(bts, st, end);
}
}
yourEntity.writeTo(new ProgressiveOutputStream(outstream));
}
};
ProgressiveEntity myEntity = new ProgressiveEntity();
post.setEntity(myEntity);
HttpResponse response = client.execute(post);
return getContent(response);
}
public static String getContent(HttpResponse response) throws IOException {
BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
String body = "";
String content = "";
while ((body = rd.readLine()) != null)
{
content += body + "\n";
}
return content.trim();
}
我的 Gradle 依赖项
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.3'
compile "org.apache.httpcomponents:httpmime:4.3.6"
compile "org.apache.httpcomponents:httpclient:4.3.6"
compile "org.apache.httpcomponents:httpcore:4.2.4"
构建运行时出现错误信息：
Error:Execution failed for task ':app:packageDebug'.
在 APK META-INF/DEPENDENCIES 中复制重复文件 文件 1: /home/bekir/.gradle/caches/modules-2/files-2.1/org.apache.httpcomponents/httpcore/4.3.3/f91b7a4aadc5cf486df6e4634748d7dd7a73f06d/httpcore-4.3.3.jar 文件 2: /home/bekir/.gradle/caches/modules-2/files-2.1/org.apache.httpcomponents/httpcore/4.3.3/f91b7a4aadc5cf486df6e4634748d7dd7a73f06d/httpcore-4.3.3.jar 你可以在 build.gradle 文件中忽略这些文件: Origin 2: /home/bekir/.gradle/caches/modules-2/files-2.1/org.apache.httpcomponents/httpmime/4.3.6/cf8bacbf0d476c7f2221f861269365b66447f7ec/httpmime-4.3.6.jar Origin 1: /home/bekir/.gradle/caches/modules-2/files-2.1/org.apache.httpcomponents/httpcore/4.3.3/f91b7a4aadc5cf486df6e4634748d7dd7a73f06d/httpcore-4.3.3.jar 归档路径: META-INF/DEPENDENCIES
错误：打包 APK 时出现重复文件，路径为 /home/bekir/AndroidStudioProjects/uploadfile/app/build/outputs/apk/app-debug-unaligned.apk
其他内容为 Gradle 构建过程中的任务和状态信息。
警告：依赖项org.apache.httpcomponents:httpclient:4.3.6在发布中被忽略，因为它可能与Android提供的内部版本冲突。 如果有问题，请使用jarjar重新打包以更改类包。 如果有问题，请使用jarjar重新打包以更改类包。 警告：依赖项org.apache.httpcomponents:httpclient:4.3.6在发布中被忽略，因为它可能与Android提供的内部版本冲突。 如果有问题，请使用jarjar重新打包以更改类包。 警告：依赖项org.apache.httpcomponents:httpclient:4.3.6在调试中被忽略，因为它可能与Android提供的内部版本冲突。 如果有问题，请使用jarjar重新打包以更改类包。 信息：Gradle任务[:app:assembleDebug] 警告：依赖项org.apache.httpcomponents:httpclient:4.3.6在调试中被忽略，因为它可能与Android提供的内部版本冲突。
Error:Execution failed for task ':app:packageDebug'.
APK META-INF/DEPENDENCIES 中复制了重复文件 文件1: /home/bekir/.gradle/caches/modules-2/files-2.1/org.apache.httpcomponents/httpcore/4.3.3/f91b7a4aadc5cf486df6e4634748d7dd7a73f06d/httpcore-4.3.3.jar 文件2: /home/bekir/.gradle/caches/modules-2/files-2.1/org.apache.httpcomponents/httpcore/4.3.3/f91b7a4aadc5cf486df6e4634748d7dd7a73f06d/httpcore-4.3.3.jar