微信小程序订阅消息开发指南(java) - IT评测·应用市场-qidao123.com

wx.login({
success (res) {
if (res.code) {
//发起网络请求
wx.request({
url: 'https://example.com/onLogin',
data: {
code: res.code
}
})
} else {
console.log('登录失败！' + res.errMsg)
}
}
})
// 结果 {errMsg: "login:ok", code: "0a3kK4Ga10Gk3F0oBAHa1mGyRl3kK4Gd"}

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uni.login({
provider: 'weixin', //使用微信登录
success: function (loginRes) {
console.log(loginRes)
}
});
// 结果 {errMsg: "login:ok", code: "0a3kK4Ga10Gk3F0oBAHa1mGyRl3kK4Gd"}

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wx.requestSubscribeMessage({
tmplIds: [''],
success (res) {
console.log(res)
}
})

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getSetting() {
uni.getSetting({
withSubscriptions: true, // 获取用户订阅状态
success(res) {
// false 表示用户未订阅改消息
if (!res.subscriptionsSetting.mainSwitch) {
this.subscribeMessage();
} else {
uni.showToast({
title: '已订阅',
icon: 'none'
})
}
}
})
},
subscribeMessage() {
uni.requestSubscribeMessage({
tmplIds: ['模板id'],
success(res) {
if (res.errMsg === 'requestSubscribeMessage:ok') {
uni.showToast({
title: '订阅成功',
icon: 'none'
})
}
}
})
}

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public String getOpenId(String code) throws IOException {
CloseableHttpClient httpClient = HttpClientBuilder.create().build();
Map<String, Object> params = new HashMap<>();
params.put("appid", Constants.APPLET_APP_ID);
params.put("secret", Constants.APPLET_SECRET);
params.put("js_code", code);
params.put("grant_type", "authorization_code");
String url = handleParams("https://api.weixin.qq.com/sns/jscode2session", params);
HttpGet httpGet = new HttpGet(url);
CloseableHttpResponse response = httpClient.execute(httpGet);
HttpEntity entity = response.getEntity(); // 响应结果
return EntityUtils.toString(entity, CharSetType.UTF8.getType());
}
public static void main(String[] args) throws IOException {
HttpUtils httpUtils = new HttpUtils();
String token = httpUtils.getToken();
System.out.println(token);
}

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{"access_token":"67_u22CQaWq22222222Q4griDE6kiT5hwg7jVxedn8J9te17Az1oWGGxPgB22222229Y4Wm6h_Yzci7-FSDjeH8YG6DsCOYrQXJCWsPXhT6nWbKIWCXfABACID","expires_in":7200}

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public String getToken() throws IOException {
CloseableHttpClient httpClient = HttpClientBuilder.create().build();
Map<String, Object> params = new HashMap<>();
params.put("appid", Constants.APPLET_APP_ID);
params.put("secret", Constants.APPLET_SECRET);
params.put("grant_type", "client_credential");
String url = handleParams("https://api.weixin.qq.com/cgi-bin/token", params);
HttpGet httpGet = new HttpGet(url);
CloseableHttpResponse response = httpClient.execute(httpGet);
HttpEntity entity = response.getEntity(); // 响应结果
return EntityUtils.toString(entity, CharSetType.UTF8.getType());
}

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public String pushMsg(String token) throws IOException {
CloseableHttpClient httpClient = HttpClientBuilder.create().build();
Map<String, Object> params = new HashMap<>();
// 处理微信推送数据结构
JSONObject mapData = new JSONObject();
Map<String, Object> map1 = new HashMap<>();
map1.put("value", "任务名称");
mapData.put("thing2", map1);
Map<String, Object> map2 = new HashMap<>();
map2.put("value", "2022-04-03 10:00:00");
mapData.put("time3", map2);
Map<String, Object> map3 = new HashMap<>();
map3.put("value", "描述信息");
mapData.put("thing4", map3);
Map<String, Object> map4 = new HashMap<>();
map4.put("value", "备注信息");
mapData.put("thing10", map4);
Map<String, Object> map5 = new HashMap<>();
map5.put("value", "任务来源");
mapData.put("thing11", map5);
params.put("template_id", "templateId");// 模板 id
params.put("touser", "openId"); // open id
params.put("data", mapData); // 数据
params.put("page", "page"); // 点击模板卡片后的跳转页面，仅限本小程序内的页面。支持带参数,（示例index?foo=bar）。该字段不填则模板无跳转
params.put("miniprogram_state", "trial"); //developer为开发版；trial为体验版；formal为正式版；默认为正式版
params.put("lang", "zh_CN"); //
HttpPost httpPost = new HttpPost("https://api.weixin.qq.com/cgi-bin/message/subscribe/send?access_token=" + token);
httpPost.addHeader("ContentTyp", "application/json");
// 参数转 JSON 格式
String json = objToStr(params);
StringEntity stringEntity = new StringEntity(json, CharSetType.UTF8.getType());
stringEntity.setContentEncoding(CharSetType.UTF8.getType());
httpPost.setEntity(stringEntity);
CloseableHttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity(); // 响应结果
return EntityUtils.toString(entity, CharSetType.UTF8.getType());
}

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import com.alibaba.fastjson.JSONObject;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.github.chenlijia1111.utils.core.enums.CharSetType;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.jeecg.modules.video.utitls.Constants;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Collectors;
/**
* @description:
* @author: Mr.Fang
* @create: 2023-04-03 17:06
**/
public class HttpUtils {
/**
* description: 获取token，返回结果为 JSON 自行转 map
* create by: Mr.Fang
*
* @return: java.lang.String
* @date: 2023/4/3 17:46
*/
public String getToken() throws IOException {
CloseableHttpClient httpClient = HttpClientBuilder.create().build();
Map<String, Object> params = new HashMap<>();
params.put("appid", Constants.APPLET_APP_ID);
params.put("secret", Constants.APPLET_SECRET);
params.put("grant_type", "client_credential");
String url = handleParams("https://api.weixin.qq.com/cgi-bin/token", params);
HttpGet httpGet = new HttpGet(url);
CloseableHttpResponse response = httpClient.execute(httpGet);
HttpEntity entity = response.getEntity(); // 响应结果
return EntityUtils.toString(entity, CharSetType.UTF8.getType());
}
/**
* description: 获取 open id，返回结果为 JSON 自行转 map
* create by: Mr.Fang
*
* @param: [code]
* @return: java.lang.String
* @date: 2023/4/3 17:46
*/
public String getOpenId(String code) throws IOException {
CloseableHttpClient httpClient = HttpClientBuilder.create().build();
Map<String, Object> params = new HashMap<>();
params.put("appid", Constants.APPLET_APP_ID);
params.put("secret", Constants.APPLET_SECRET);
params.put("js_code", code);
params.put("grant_type", "authorization_code");
String url = handleParams("https://api.weixin.qq.com/sns/jscode2session", params);
HttpGet httpGet = new HttpGet(url);
CloseableHttpResponse response = httpClient.execute(httpGet);
HttpEntity entity = response.getEntity(); // 响应结果
return EntityUtils.toString(entity, CharSetType.UTF8.getType());
}
/**
* description: 消息推送返回结果为 JSON 自行转 map；token 调用 getToken获取
* create by: Mr.Fang
*
* @param: [token]
* @return: java.lang.String
* @date: 2023/4/3 17:46
*/
public String pushMsg(String token) throws IOException {
CloseableHttpClient httpClient = HttpClientBuilder.create().build();
Map<String, Object> params = new HashMap<>();
// 处理微信推送数据结构
JSONObject mapData = new JSONObject();
Map<String, Object> map1 = new HashMap<>();
map1.put("value", "任务名称");
mapData.put("thing2", map1);
Map<String, Object> map2 = new HashMap<>();
map2.put("value", "2023-04-03 12:00:00");
mapData.put("time3", map2);
Map<String, Object> map3 = new HashMap<>();
map3.put("value", "描述信息");
mapData.put("thing4", map3);
Map<String, Object> map4 = new HashMap<>();
map4.put("value", "备注系信息");
mapData.put("thing10", map4);
Map<String, Object> map5 = new HashMap<>();
map5.put("value", "抖音");
mapData.put("thing11", map5);
params.put("template_id", "templateId");// 模板 id
params.put("touser", "openId"); // open id
params.put("data", mapData); // 数据
params.put("page", "page"); // 点击模板卡片后的跳转页面，仅限本小程序内的页面。支持带参数,（示例index?foo=bar）。该字段不填则模板无跳转
params.put("miniprogram_state", "trial"); //developer为开发版；trial为体验版；formal为正式版；默认为正式版
params.put("lang", "zh_CN"); //
HttpPost httpPost = new HttpPost("https://api.weixin.qq.com/cgi-bin/message/subscribe/send?access_token=" + token);
httpPost.addHeader("ContentTyp", "application/json");
// 参数转 JSON 格式
String json = objToStr(params);
StringEntity stringEntity = new StringEntity(json, CharSetType.UTF8.getType());
stringEntity.setContentEncoding(CharSetType.UTF8.getType());
httpPost.setEntity(stringEntity);
CloseableHttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity(); // 响应结果
return EntityUtils.toString(entity, CharSetType.UTF8.getType());
}
/**
* description: 对象转字符串
* create by: Mr.Fang
*
* @param: [obj]
* @return: java.lang.String
* @date: 2023/4/3 17:45
*/
public static String objToStr(Object obj) {
ObjectMapper objectMapper = new ObjectMapper();
if (Objects.nonNull(obj)) {
try {
String jsonStr = objectMapper.writeValueAsString(obj);
return jsonStr;
} catch (JsonProcessingException var2) {
var2.printStackTrace();
}
}
return null;
}
/**
* description: map 转 URL 地址拼接
* create by: Mr.Fang
*
* @param: [url, params]
* @return: java.lang.String
* @date: 2023/4/3 17:45
*/
public String handleParams(String url, Map<String, Object> params) {
if (params.size() != 0) {
Set<Map.Entry<String, Object>> entries = params.entrySet();
String paramsString = entries.stream().map((e) -> {
try {
StringBuilder sb = new StringBuilder();
sb.append(URLEncoder.encode(e.getKey(), CharSetType.UTF8.getType()));
sb.append("=");
if (Objects.nonNull(e.getValue())) {
sb.append(URLEncoder.encode(e.getValue().toString(), CharSetType.UTF8.getType()));
}
return sb.toString();
} catch (UnsupportedEncodingException var2) {
var2.printStackTrace();
return null;
}
}).collect(Collectors.joining("&"));
return url + "?" + paramsString;
}
return url;
}
}

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