一、微信上传素材接口简介

1、请求：该请求是使用post提交地址为：

https://api.weixin.qq.com/cgi-bin/media/uploadnews?access_token=ACCESS_TOKEN

其中ACCESS_TOKEN是我们动态获取的。

发送的数据：

{"articles":[

{

"thumb_media_id":"qI6_Ze_6PtV7svjolgs-rN6stStuHIjs9_DidOHaj0Q-mwvBelOXCFZiq2OsIU-p",

"author":"xxx",

"title":"Happy Day",

"content_source_url":"www.qq.com",

"content":"content",

"digest":"digest",

"show_cover_pic":"1"

},

{

"thumb_media_id":"qI6_Ze_6PtV7svjolgs-rN6stStuHIjs9_DidOHaj0Q-mwvBelOXCFZiq2OsIU-p",

"author":"xxx",

"title":"Happy Day",

"content_source_url":"www.qq.com",

"content":"content",

"digest":"digest",

"show_cover_pic":"0"

}

]

}

articles,图文消息，一个图文消息支持1到10条图文

thumb_media_id,图文消息缩略图的media_id，可以在基础支持-上传多媒体文件接口(java微信接口之三—上传多媒体文件)中获得

author,图文消息的作者

title,图文消息的标题

content_source_url,在图文消息页面点击“阅读原文”后的页面

content,图文消息页面的内容，支持HTML标签

digest,图文消息的描述

show_cover_pic,是否显示封面，1为显示，0为不显示

2、响应：该响应也是以json方式返回的

正确的时候返回的数据：

{

"type":"news",

"media_id":"CsEf3ldqkAYJAU6EJeIkStVDSvffUJ54vqbThMgplD-VJXXof6ctX5fI6-aYyUiQ",

"created_at":1391857799

}

type为媒体文件类型，分别有图片(image)、语音(voice)、视频(video)和缩略图(thumb)，次数为news，即图文消息，

media_id就是上传素材后素材的id，

created_at表示创建的时间。

错误的时候返回的数据：{"errcode":40004,"errmsg":"invalid media type"}

errcode，为错误代码，errmsg为错误信息

二、关于java代码的调用

该接口的调用与java微信接口之三—上传多媒体文件一样，需要使用到commons-httpclient。其中数据是构造成json数据后，放在post方法请求体里面发送给服务器端。

三、代码实现

1 importjava.io.File;2 importjava.util.ArrayList;3 importjava.util.HashMap;4 importjava.util.List;5 importjava.util.Map;6

7 importorg.apache.commons.httpclient.methods.PostMethod;8 importorg.apache.commons.httpclient.methods.multipart.FilePart;9 importorg.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;10 importorg.apache.commons.httpclient.methods.multipart.Part;11 importorg.apache.http.HttpEntity;12 importorg.apache.http.HttpResponse;13 importorg.apache.http.HttpStatus;14 importorg.apache.http.client.HttpClient;15 importorg.apache.http.client.methods.HttpGet;16 importorg.apache.http.impl.client.DefaultHttpClient;17 importorg.apache.http.util.EntityUtils;18

19 importcom.google.gson.Gson;20 importcom.google.gson.JsonArray;21 importcom.google.gson.JsonObject;22 importcom.google.gson.JsonParser;23

24 public classTest25 {26 public static final String GET_TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token";//获取access

27 public static final String UPLOAD_IMAGE_URL = "http://file.api.weixin.qq.com/cgi-bin/media/upload";//上传多媒体文件

28 public static final String UPLOAD_FODDER_URL = "https://api.weixin.qq.com/cgi-bin/media/uploadnews";29 public static final String APP_ID = "wxa549b28c24cf341e";30 public static final String SECRET = "78d8a8cd7a4fa700142d06b96bf44a37";31

32 /**

33 * 上传素材34 *35 *@paramuploadurl36 * apiurl37 *@paramaccess_token38 * 访问token39 *@paramdata40 * 提交数据41 *@return

42 */

43 public staticString uploadFodder(String uploadurl, String access_token,44 String data)45 {46 org.apache.commons.httpclient.HttpClient client = neworg.apache.commons.httpclient.HttpClient();47 String posturl = String.format("%s?access_token=%s", uploadurl,48 access_token);49 PostMethod post = newPostMethod(posturl);50 post51 .setRequestHeader(52 "User-Agent",53 "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:30.0) Gecko/20100101 Firefox/30.0");54 post.setRequestHeader("Host", "file.api.weixin.qq.com");55 post.setRequestHeader("Connection", "Keep-Alive");56 post.setRequestHeader("Cache-Control", "no-cache");57 String result = null;58 try

59 {60 post.setRequestBody(data);61 int status =client.executeMethod(post);62 if (status ==HttpStatus.SC_OK)63 {64 String responseContent =post.getResponseBodyAsString();65 System.out.println(responseContent);66 JsonParser jsonparer = new JsonParser();//初始化解析json格式的对象

67 JsonObject json =jsonparer.parse(responseContent)68 .getAsJsonObject();69 if (json.get("errcode") == null)70 {//正确 { "type":"news", "media_id":"CsEf3ldqkAYJAU6EJeIkStVDSvffUJ54vqbThMgplD-VJXXof6ctX5fI6-aYyUiQ","created_at":1391857799}

71 result = json.get("media_id").getAsString();72 }73 }74 }75 catch(Exception e)76 {77 e.printStackTrace();78 }79 finally

80 {81 returnresult;82 }83 }84

85 public static void main(String[] args) throwsException86 {87 String accessToken = getToken(GET_TOKEN_URL, APP_ID, SECRET);//获取token在微信接口之一中获取

88 if (accessToken != null)//token成功获取

89 {90 System.out.println(accessToken);91 File file = new File("f:" + File.separator + "2000.JPG"); //获取本地文件

92 String id = uploadImage(UPLOAD_IMAGE_URL, accessToken, "image",93 file);//java微信接口之三—上传多媒体文件 可获取

94 if (id != null)95 {96 //构造数据

97 Map map = newHashMap();98 map.put("thumb_media_id", id);99 map.put("author", "wxx");100 map.put("title", "标题");101 map.put("content", "测试fdsfdsfsdfssfdsfsdfsdfs");102 map.put("digest", "digest");103 map.put("show_cover_pic", "0");104

105 Map map2 = newHashMap();106 map2.put("thumb_media_id", id);107 map2.put("author", "wxx");108 map2.put("content_source_url", "www.google.com");109 map2.put("title", "标题");110 map2.put("content", "测试fdsfdsfsdfssfdsfsdfsdfs");111 map2.put("digest", "digest");112

113 Map map3 = newHashMap();114 List list = new ArrayList();115 list.add(map);116 list.add(map2);117 map3.put("articles", list);118

119 Gson gson = newGson();120 String result = gson.toJson(map3);//转换成json数据格式

121 String mediaId =uploadFodder(UPLOAD_FODDER_URL, accessToken,122 result);123 if (mediaId != null)124 {125 System.out.println(mediaId);126 }127 }128 }129 }130 }

上传成功就会打印该素材id。

原文：http://www.cnblogs.com/always-online/p/3871679.html