Android(安卓)Retrofit 2.0框架上传图片解决方案(一张与多张的处理)
16lz
2021-01-25
标题: Android Retrofit 2.0框架上传图片解决方案(一张与多张的处理)
1.单张图片的上传
/** * 上传一张图片 * @param description * @param imgs * @return */ @Multipart @POST("/upload") Call uploadImage(@Part("fileName") String description, @Part("file\"; filename=\"image.png\"")RequestBody imgs);
2.多张图片的上传
/** * 上传三张图片 * @param description * @param imgs * @param imgs1 * @param imgs3 * @return */ @Multipart @POST("/upload") Call 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。
@Multipart @POST("/upload") Call uploadImage(@Part("fileName") String description, @Part("file\"; filename=\"image.png\"")RequestBody ...imgs);
调用:
Call 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
public interface FileUploadService { /** * 上传一张图片 * @param description * @param imgs * @return */ @Multipart @POST("/upload") CalluploadImage(@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 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
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
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; Callcall = apiManager.uploadImage( m[0],requestBody1,requestBody2,null); call.enqueue(new Callback () { @Override public void onResponse(Response 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:@Controllerpublic 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));}}
上传胡结果:
------[\tmp\upload__4348b3f0_1528c3d9735__8000_00000038.tmp,\tmp\upload__4348b3f0_1528c3d9735__8000_00000040.tmp]
------["share.png"]
2016-1-29 16:59:04 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Removing file file \tmp\upload__4348b3f0_1528c3d9735__8000_00000038.tmp
2016-1-29 16:59:04 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Removing file file \tmp\upload__4348b3f0_1528c3d9735__8000_00000040.tmp
总共就这些吧。有问题大家在下面说。QQ1561281670
代码下载地址
追加:
多图上传的一种简单那写法:
public static void uploadMany(ArrayListpaths,String desp){ Map photos = new HashMap<>(); if (paths.size()>0) { for (int i=0;i stringCall = apiManager.uploadImage(desp, photos); stringCall.enqueue(new Callback () { @Override public void onResponse(Call call, Response response) { Log.d(TAG, "onResponse() called with: " + "call = [" + call + "], response = [" + response + "]"); } @Override public void onFailure(Call call, Throwable t) { Log.d(TAG, "onFailure() called with: " + "call = [" + call + "], t = [" + t + "]"); } }); }
这样洗是不是比上面的好多了。如果再有什么好的写法,请提出来。我在改进
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