{"id":385,"date":"2023-02-25T08:41:05","date_gmt":"2023-02-25T00:41:05","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=385"},"modified":"2023-04-30T14:38:48","modified_gmt":"2023-04-30T06:38:48","slug":"retrofit2-learning-7-upload-multiple-files","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/02\/25\/retrofit2-learning-7-upload-multiple-files\/","title":{"rendered":"Retrofit2\u5b66\u4e60\u4e4b\u4e03\uff1a\u4e0a\u4f20\u591a\u4e2a\u6587\u4ef6"},"content":{"rendered":"<p>\u4e0a\u4f20\u591a\u4e2a\u6587\u4ef6\u6709\u4e24\u79cd\u65b9\u6848\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u591a\u4e2a\u57df\uff0c\u6bcf\u4e2a\u57df\u4e0a\u4f20\u4e00\u4e2a\u6587\u4ef6<\/li>\n<li>\u4f7f\u7528\u4e00\u4e2a\u57df\uff0c\u5728\u8be5\u57df\u540d\u79f0\u4e0b\u4e0a\u4f20\u591a\u4e2a\u6587\u4ef6<\/li>\n<\/ul>\n<p><!-- more --><\/p>\n<h2>\u4f7f\u7528\u591a\u4e2a\u57df\u4e0a\u4f20\u591a\u4e2a\u6587\u4ef6<\/h2>\n<h3>\u521b\u5efa\u4e1a\u52a1\u8bf7\u6c42\u63a5\u53e3<\/h3>\n<pre><code class=\"language-java\">public interface Api {\n\n    \/**\n     * \u4e0a\u4f20\u591a\u4e2a\u6587\u4ef6\uff1a\u4e00\u4e2a\u57df\u5bf9\u5e94\u4e00\u4e2a\u6587\u4ef6\n     * @param description\n     * @param file1\n     * @param file2\n     * @return\n     *\/\n    @Multipart\n    @POST(&quot;upload\/multiple&quot;)\n    Call&lt;ResponseBody&gt; uploadMultipleFiles(@Part(&quot;description&quot;) RequestBody description,\n                                           @Part MultipartBody.Part file1,\n                                           @Part MultipartBody.Part file2);\n\n}<\/code><\/pre>\n<h3>\u521b\u5efa\u4e00\u4e2aRetrofit\u7684\u5b9e\u4f8b\uff0c\u7136\u540e\u5229\u7528Retrofit\u5b9e\u4f8b\u521b\u5efa\u63a5\u53e3\u5bf9\u8c61\u548c\u8c03\u7528\u63a5\u53e3\u65b9\u6cd5<\/h3>\n<pre><code class=\"language-java\">public static final String MULTIPART_FORM_DATA = &quot;multipart\/form-data&quot;;\n\n@NonNull\nprivate RequestBody prepareFromPart(String description) {\n    return RequestBody.create(MediaType.parse(MULTIPART_FORM_DATA), description);\n}\n\n\/**\n * \u4e00\u4e2a\u57df\u5bf9\u5e94\u4e00\u4e2a\u6587\u4ef6\n * @param partName\n * @param filePath\n * @return\n *\/\nprivate MultipartBody.Part prepareFilePart(String partName, String filePath) {\n    File file = new File(filePath);\n    \/\/ \u4e3afile\u5efa\u7acbRequestBody\u5b9e\u4f8b\n    RequestBody requestFile = RequestBody.create(MediaType.parse(MULTIPART_FORM_DATA), file);\n    \/\/ MultipartBody.Part\u501f\u52a9\u6587\u4ef6\u540d\u5b8c\u6210\u6700\u7ec8\u7684\u4e0a\u4f20\n    return MultipartBody.Part.createFormData(partName, file.getName(), requestFile);\n}\n\npublic void uploadMultipleFiles(View view) {\n    String file1Path = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + &quot;test.gif&quot;;\n    String file2Path = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + &quot;source.gif&quot;;\n\n    Retrofit retrofit = new Retrofit.Builder()\n            .baseUrl(SERVER_ADDRESS)\n            .build();\n\n    api = retrofit.create(Api.class);\n\n    \/\/ \u6dfb\u52a0Form\u7684part\n    RequestBody description = prepareFromPart(&quot;hello, this is description speaking&quot;);\n\n    \/\/ \u521b\u5efa\u6587\u4ef6\u7684part (photo, video, ...)\n    MultipartBody.Part file1Body = prepareFilePart(&quot;file&quot;, file1Path);\n    MultipartBody.Part file2Body = prepareFilePart(&quot;file&quot;, file2Path);\n\n    api.uploadMultipleFiles(description, file1Body, file2Body).enqueue(new Callback&lt;ResponseBody&gt;() {\n        @Override\n        public void onResponse(Call&lt;ResponseBody&gt; call, Response&lt;ResponseBody&gt; response) {\n            \/\/\u5728UI\u4e3b\u7ebf\u7a0b\u8fd0\u884c\n            if (response.isSuccessful()) {\n                Log.i(TAG, &quot;\u4e0a\u4f20\u6210\u529f&quot;);\n            }\n        }\n\n        @Override\n        public void onFailure(Call&lt;ResponseBody&gt; call, Throwable t) {\n            Log.i(TAG, &quot;\u4e0a\u4f20\u5931\u8d25: &quot; + t.getLocalizedMessage());\n        }\n    });\n}<\/code><\/pre>\n<h2>\u4f7f\u7528\u4e00\u4e2a\u57df\u4e0a\u4f20\u591a\u4e2a\u6587\u4ef6<\/h2>\n<h3>\u521b\u5efa\u4e1a\u52a1\u8bf7\u6c42\u63a5\u53e3<\/h3>\n<pre><code class=\"language-java\">public interface Api {\n\n    \/**\n     * \u4e0a\u4f20\u591a\u4e2a\u6587\u4ef6\uff1a\u4e00\u4e2a\u57df\u5bf9\u5e94\u591a\u4e2a\u6587\u4ef6\n     * @param description\n     * @param parts\n     * @return\n     *\/\n    @Multipart\n    @POST(&quot;upload\/multiples&quot;)\n    Call&lt;ResponseBody&gt; uploadMultipleFiles(@Part(&quot;description&quot;) RequestBody description,\n                                           @Part List&lt;MultipartBody.Part&gt; parts);\n\n}<\/code><\/pre>\n<h3>\u521b\u5efa\u4e00\u4e2aRetrofit\u7684\u5b9e\u4f8b\uff0c\u7136\u540e\u5229\u7528Retrofit\u5b9e\u4f8b\u521b\u5efa\u63a5\u53e3\u5bf9\u8c61\u548c\u8c03\u7528\u63a5\u53e3\u65b9\u6cd5<\/h3>\n<pre><code class=\"language-java\">public static final String MULTIPART_FORM_DATA = &quot;multipart\/form-data&quot;;\n\n@NonNull\nprivate RequestBody prepareFromPart(String description) {\n    return RequestBody.create(MediaType.parse(MULTIPART_FORM_DATA), description);\n}\n\n\/**\n * \u4e00\u4e2a\u57df\u5bf9\u5e94\u591a\u4e2a\u6587\u4ef6\n * @param partName\n * @param filePathList\n * @return\n *\/\nprivate List&lt;MultipartBody.Part&gt; prepareFilesPart(String partName, List&lt;String&gt; filePathList) {\n    List&lt;MultipartBody.Part&gt; parts = new ArrayList&lt;&gt;(filePathList.size());\n    for (String filePath : filePathList) {\n        Log.i(TAG, &quot;prepareFilesPart: &quot; + filePath);\n        File file = new File(filePath);\n        RequestBody requestFile = RequestBody.create(MediaType.parse(MULTIPART_FORM_DATA), file);\n        MultipartBody.Part part = MultipartBody.Part.createFormData(partName, file.getName(), requestFile);\n        parts.add(part);\n    }\n    return parts;\n}\n\npublic void uploadMultipleFiles(View view) {\n    String file1Path = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + &quot;test.gif&quot;;\n    String file2Path = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + &quot;source.gif&quot;;\n    List&lt;String&gt; filePathList = new ArrayList&lt;&gt;();\n    filePathList.add(file1Path);\n    filePathList.add(file2Path);\n\n    Retrofit retrofit = new Retrofit.Builder()\n            .baseUrl(SERVER_ADDRESS)\n            .build();\n\n    api = retrofit.create(Api.class);\n\n    \/\/ \u6dfb\u52a0Form\u7684part\n    RequestBody description = prepareFromPart(&quot;hello, this is description speaking&quot;);\n\n    \/\/ \u521b\u5efa\u6587\u4ef6\u7684part (photo, video, ...)\n    List&lt;MultipartBody.Part&gt; fileBody = prepareFilesPart(&quot;file&quot;, filePathList);\n\n    api.uploadMultipleFiles(description, fileBody).enqueue(new Callback&lt;ResponseBody&gt;() {\n        @Override\n        public void onResponse(Call&lt;ResponseBody&gt; call, Response&lt;ResponseBody&gt; response) {\n            \/\/\u5728UI\u4e3b\u7ebf\u7a0b\u8fd0\u884c\n            if (response.isSuccessful()) {\n                Log.i(TAG, &quot;\u4e0a\u4f20\u6210\u529f&quot;);\n            }\n        }\n\n        @Override\n        public void onFailure(Call&lt;ResponseBody&gt; call, Throwable t) {\n            Log.i(TAG, &quot;\u4e0a\u4f20\u5931\u8d25: &quot; + t.getLocalizedMessage());\n        }\n    });\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0a\u4f20\u591a\u4e2a\u6587\u4ef6\u6709\u4e24\u79cd\u65b9\u6848\uff1a \u4f7f\u7528\u591a\u4e2a\u57df\uff0c\u6bcf\u4e2a\u57df\u4e0a\u4f20\u4e00\u4e2a\u6587\u4ef6 \u4f7f\u7528\u4e00\u4e2a\u57df\uff0c\u5728\u8be5\u57df\u540d\u79f0\u4e0b\u4e0a\u4f20\u591a\u4e2a\u6587\u4ef6 \u4f7f\u7528\u591a\u4e2a\u57df\u4e0a\u4f20 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[130],"tags":[],"class_list":["post-385","post","type-post","status-publish","format-standard","hentry","category-retrofit"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=385"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/385\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}