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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
------["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
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
追加：
多图上传的一种简单那写法：
</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
