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

2016-11-24 12:34 405 查看
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目录(?)[+]
 标题 Android Retrofit 20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
  2多张图片的上传
最后是实现胡过程
服务器段代码

 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

   

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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);  



/**
* 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);  



/**
* 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);  



@Multipart
@POST("/upload")
Call<String> uploadImage(@Part("fileName") String description,
@Part("file\"; filename=\"image.png\"")RequestBody ...imgs);


     调用：

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Call<String> call = apiManager.uploadImage( m[0],requestBody1,requestBody2,null);  



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：

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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));  
    }  
      
      
      
}  



@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

代码下载地址

追加：

多图上传的一种简单那写法：

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</pre><pre name="code" class="java">public static void uploadMany(ArrayList<String> paths,String desp){  
        Map<String,RequestBody> photos = new HashMap<>();  
        if (paths.size()>0) {  
            for (int i=0;i<paths.size();i++) {  
                photos.put("photos"+i+"\"; filename=\"icon.png",  RequestBody.create(MediaType.parse("multipart/form-data"), new File(paths.get(i))));  
            }  
        }  
        Call<String> stringCall = apiManager.uploadImage(desp, photos);  
        stringCall.enqueue(new Callback<String>() {  
            @Override  
            public void onResponse(Call<String> call, Response<String> response) {  
                Log.d(TAG, "onResponse() called with: " + "call = [" + call + "], response = [" + response + "]");  
            }  
  
            @Override  
            public void onFailure(Call<String> call, Throwable t) {  
                Log.d(TAG, "onFailure() called with: " + "call = [" + call + "], t = [" + t + "]");  
            }  
        });  
    }  



</pre><pre name="code" class="java">public static void uploadMany(ArrayList<String> paths,String desp){
Map<String,RequestBody> photos = new HashMap<>();
if (paths.size()>0) {
for (int i=0;i<paths.size();i++) {
photos.put("photos"+i+"\"; filename=\"icon.png",  RequestBody.create(MediaType.parse("multipart/form-data"), new File(paths.get(i))));
}
}
Call<String> stringCall = apiManager.uploadImage(desp, photos);
stringCall.enqueue(new Callback<String>() {
@Override
public void onResponse(Call<String> call, Response<String> response) {
Log.d(TAG, "onResponse() called with: " + "call = [" + call + "], response = [" + response + "]");
}

@Override
public void onFailure(Call<String> 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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