微信企业号开发三：主动调用模式之发送news消息
蒋正平
企业可以主动发消息给成员，消息量不受限制。
调用接口时，使用Https协议、JSON数据包格式，数据包不需做加密处理。
目前消息型应用支持文本、图片、语音、视频、文件、图文等消息类型。除了news类型，其它类型的消息可在发送时加上保密选项，保密消息会被打上水印，并且只有接收者才能阅读。主页型应用支持文本类型，文本长度不超过20个字。
news消息
{
"touser": "UserID1|UserID2|UserID3",
"toparty": " PartyID1 | PartyID2 ",
"totag": " TagID1 | TagID2 ",
"msgtype": "news",
"agentid": 1,
"news": {
"articles":[
{
"title": "Title",
"description": "Description",
"url": "URL",
"picurl": "PIC_URL"
},
{
"title": "Title",
"description": "Description",
"url": "URL",
"picurl": "PIC_URL"
}
]
}
}
| 参数 | 必须 | 说明 |
|---|---|---|
| touser | 否 | 成员ID列表（消息接收者，多个接收者用‘|’分隔，最多支持1000个）。特殊情况：指定为@all，则向关注该企业应用的全部成员发送 |
| toparty | 否 | 部门ID列表，多个接收者用‘|’分隔，最多支持100个。当touser为@all时忽略本参数 |
| totag | 否 | 标签ID列表，多个接收者用‘|’分隔。当touser为@all时忽略本参数 |
| msgtype | 是 | 消息类型，此时固定为：news |
| agentid | 是 | 企业应用的id，整型。可在应用的设置页面查看 |
| articles | 是 | 图文消息，一个图文消息支持1到10条图文 |
| title | 否 | 标题 |
| description | 否 | 描述 |
| url | 否 | 点击后跳转的链接。 |
| picurl | 否 | 图文消息的图片链接，支持JPG、PNG格式，较好的效果为大图640*320，小图80*80。如不填，在客户端不显示图片 |
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/**
* 主动发送消息
* @param mess
* @return
*/
public boolean sendReqMsg(ReqBaseMessage mess){
//消息json格式
String jsonContext=mess.toJsonStr();
//System.out.println(jsonContext);
//获得token
String token=getTokenFromWx();
boolean flag=false;
try {
CloseableHttpClient httpclient = HttpClients.createDefault();
HttpPost httpPost= new HttpPost("https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token="+token);
//发送json格式的数据
StringEntity myEntity = new StringEntity(jsonContext,
ContentType.create("text/plain", "UTF-8"));
//设置需要传递的数据
httpPost.setEntity(myEntity);
// Create a custom response handler
ResponseHandler<JSONObject> responseHandler = new ResponseHandler<JSONObject>() {
//对访问结果进行处理
public JSONObject handleResponse(
final HttpResponse response) throws ClientProtocolException, IOException {
int status = response.getStatusLine().getStatusCode();
if (status >= 200 && status < 300) {
HttpEntity entity = response.getEntity();
if(null!=entity){
String result= EntityUtils.toString(entity);
//根据字符串生成JSON对象
JSONObject resultObj = JSONObject.fromObject(result);
return resultObj;
}else{
return null;
}
} else {
throw new ClientProtocolException("Unexpected response status: " + status);
}
}
};
//返回的json对象
JSONObject responseBody = httpclient.execute(httpPost, responseHandler);
System.out.println(responseBody);
int result= (Integer) responseBody.get("errcode");
if(0==result){
flag=true;
}else{
flag=false;
}
httpclient.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return flag;
}---------------------------------------------------------------------------------------------------------------
------实体类
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/**
*
*
* @author muyunfei
*
* <p>Modification History:</p>
* <p>Date Author Description</p>
* <p>------------------------------------------------------------------</p>
* <p>Apr 8, 2015 牟云飞 新建</p>
*/
public class WxNewsMessage extends ReqBaseMessage {
public WxNewsMessage(){}
//消息
public List<WxArticle> news;
public List<WxArticle> getNews() {
return news;
}
public void setNews(List<WxArticle> news) {
this.news = news;
}
public WxNewsMessage(String touser, String toparty, String totag,
String msgtype, String agentid) {
super();
super.touser = touser;
super.toparty = toparty;
super.totag = totag;
super.msgtype = msgtype;
super.agentid = agentid;
}
public String toJsonStr(){
StringBuffer jsonStr=new StringBuffer("{");
StringBuffer str_tmp= new StringBuffer("");
//"\"touser\": \"@all\",\"msgtype\": \"text\",\"agentid\": \"0\",\"text\": {\"content\": \"helloworld\"},\"safe\": \"0\"}";
if(null!=touser&&!"".equals(touser)){
if(!"".equals(str_tmp.toString())){
str_tmp.append(",");
}
str_tmp.append("\"touser\": \""+touser+"\"");
}
if(null!=toparty&&!"".equals(toparty)){
if(!"".equals(str_tmp.toString())){
str_tmp.append(",");
}
str_tmp.append("\"toparty\": \""+toparty+"\"");
}
if(null!=totag&&!"".equals(totag)){
if(!"".equals(str_tmp.toString())){
str_tmp.append(",");
}
str_tmp.append("\"totag\": \""+totag+"\"");
}
if(null!=msgtype&&!"".equals(msgtype)){
//去除空格
msgtype=msgtype.trim();
//判断是否加逗号
if(!"".equals(str_tmp.toString())){
str_tmp.append(",");
}
str_tmp.append("\"msgtype\": \""+msgtype+"\"");
//新闻消息
if(null!=news&&0!=news.size()){
if(!"".equals(str_tmp.toString())){
str_tmp.append(",");
}
StringBuffer content=new StringBuffer("");
for (int i = 0; i < news.size(); i++) {
if(i!=0){
content.append(",");
}
content.append("{");
//获得一条消息
WxArticle info = news.get(i);
StringBuffer artileContent=new StringBuffer("");
if(null!=info.getTitle()&&!"".equals(info.getTitle())){
if(null!=artileContent.toString()&&!"".equals(artileContent.toString())){
artileContent.append(",");
}
//标题
artileContent.append("\"title\": \""+info.getTitle()+"\"");
}
if(null!=info.getDescription()&&!"".equals(info.getDescription())){
if(null!=artileContent&&!"".equals(artileContent)){
artileContent.append(",");
}
//描述
artileContent.append("\"description\": \""+info.getDescription()+"\"");
}
if(null!=info.getUrl()&&!"".equals(info.getUrl())){
if(null!=artileContent&&!"".equals(artileContent)){
artileContent.append(",");
}
//详细地址
artileContent.append("\"url\": \""+info.getUrl()+"\"");
}
if(null!=info.getPicurl()&&!"".equals(info.getPicurl())){
if(null!=artileContent&&!"".equals(artileContent)){
artileContent.append(",");
}
//图片地址
artileContent.append("\"picurl\": \""+info.getPicurl()+"\"");
}
content.append(artileContent.toString()+"}");
}
str_tmp.append("\"news\": {\"articles\":["+content+"]}");
}
}
if(null!=agentid&&!"".equals(agentid)){
if(!"".equals(str_tmp.toString())){
str_tmp.append(",");
}
str_tmp.append("\"agentid\": \""+agentid+"\"");
}
jsonStr.append(str_tmp);
jsonStr.append("}");
return jsonStr.toString();
}
}
package com.entity.wx.req;
/**
* 图文model
*/
public class WxArticle {
// 图文消息名称
private String title;
// 图文消息描述
private String description;
// 图片链接，支持JPG、PNG格式，较好的效果为大图640*320，小图80*80
private String picurl;
// 点击图文消息跳转链接
private String url;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getPicurl() {
return picurl;
}
public void setPicurl(String picurl) {
this.picurl = picurl;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
}
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