本文为大家分享了 Android Retrofit 2.0框架上传图片解决方案,具体内容如下
1.单张图片的上传
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/**
* 上传一张图片
* @param description
* @param imgs
* @return
*/
@Multipart
@POST ( "/upload" )
Call<String> uploadImage( @Part ( "fileName" ) String description,
@Part ( "file\"; filename=\"image.png\"" )RequestBody imgs);
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2.多张图片的上传
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/**
* 上传三张图片
* @param description
* @param imgs
* @param imgs1
* @param imgs3
* @return
*/
@Multipart
@POST ( "/upload" )
Call<String> uploadImage( @Part ( "fileName" ) String description,
@Part ( "file\"; filename=\"image.png\"" )RequestBody imgs,
@Part ( "file\"; filename=\"image.png\"" )RequestBody imgs1,
@Part ( "file\"; filename=\"image.png\"" )RequestBody imgs3);
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注意:目前是提供传3张,要想多上传目前我发现的方法就是想要多传一张,就多增加一个参数
@Part("file\"; filename=\"image.png\"")RequestBody imgs,以此类推。
大家看到上面觉得写法很漏,但是用于能力有限,只能想到这样。用Java中的可变参数解决之后,就只能传一张。不能多张。
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@Multipart
@POST ( "/upload" )
Call<String> uploadImage( @Part ( "fileName" ) String description,
@Part ( "file\"; filename=\"image.png\"" )RequestBody ...imgs);
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调用:
Call<String> call = apiManager.uploadImage( m[0],requestBody1,requestBody2,null);
这样写看上去很是高端,不幸的是只能传一张
3.最后是实现胡过程
3.1创建FileUploadService接口
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public interface FileUploadService {
/**
* 上传一张图片
* @param description
* @param imgs
* @return
*/
@Multipart
@POST ( "/upload" )
Call<String> uploadImage( @Part ( "fileName" ) String description,
@Part ( "file\"; filename=\"image.png\"" )RequestBody imgs);
/**
* 上传三张图片
* @param description
* @param imgs
* @param imgs1
* @param imgs3
* @return
*/
@Multipart
@POST ( "/upload" )
Call<String> uploadImage( @Part ( "fileName" ) String description,
@Part ( "file\"; filename=\"image.png\"" )RequestBody imgs,
@Part ( "file\"; filename=\"image.png\"" )RequestBody imgs1,
@Part ( "file\"; filename=\"image.png\"" )RequestBody imgs3);
}
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3.2创建Retrofit对象
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private static final Retrofit sRetrofit = new Retrofit .Builder()
.baseUrl(ENDPOINT)
.addConverterFactory(GsonConverterFactory.create())
// .addCallAdapterFactory(RxJavaCallAdapterFactory.create()) // 使用RxJava作为回调适配器
.build();
private static final FileUploadService apiManager = sRetrofit.create(FileUploadService. class );
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3.3调用上传的方法
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public static void upload(String path){
String descriptionString = "hello, this is description speaking" ;
String[] m = new String[ 2 ];
m[ 0 ]= "share.png" ;
m[ 1 ]= "Screenshot_20160128-140709.png" ;
File[] ssssss= new File[ 2 ];
File file1 = new File( "/storage/emulated/0/sc/share.png" );
File file = new File( "/storage/emulated/0/Pictures/ScreenShots/Screenshot_20160128-140709.png" );
ssssss[ 0 ]=file;
ssssss[ 0 ]=file1;
RequestBody requestBody[] = new RequestBody[ 3 ];
RequestBody requestBody1 =
RequestBody.create(MediaType.parse( "multipart/form-data" ), file);
RequestBody requestBody2 =
RequestBody.create(MediaType.parse( "multipart/form-data" ), file1);
requestBody[ 0 ]=requestBody1;
requestBody[ 1 ]=requestBody2;
Call<String> call = apiManager.uploadImage( m[ 0 ],requestBody1,requestBody2, null );
call.enqueue( new Callback<String>() {
@Override
public void onResponse(Response<String> response, Retrofit retrofit) {
Log.v( "Upload" , response.message());
Log.v( "Upload" , "success" );
}
@Override
public void onFailure(Throwable t) {
Log.e( "Upload" , t.toString());
}
});
}
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4.服务器段代码:
服务器用的是struts接收:
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@Controller
public class GetToken extends ActionSupport {
/**
*
*/
private static final long serialVersionUID = 1L;
private File[] file;
private String[] fileName;
public File[] getFile() {
return file;
}
public void setFile(File[] file) {
this .file = file;
}
public String[] getFileName() {
return fileName;
}
public void setFileName(String[] fileName) {
this .fileName = fileName;
}
@Action ( "/upload" )
public void login() {
System.out.println( "------" +Arrays.toString(file));
System.out.println( "------" +Arrays.toString(fileName));
}
}
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以上就是本文的全部内容,希望对大家的学习有所帮助。