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); |
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); |
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); |
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); } |
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 ); |
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()); } }); } |
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)); } } |
以上就是本文的全部内容,希望对大家的学习有所帮助。