Android Retrofit 2.0框架上传图片解决方案（一张与多张的处理）

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<String> 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<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。

@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

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

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;
   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：

@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));
	}
	
	
	
}

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