java实现钉钉机器人消息推送
源博客：https://blog.csdn.net/weixin_43968234/article/details/88898958
推荐大家直接看源博客，我转载排版不好看，如果看了原博客有错误的话，可以看一下此文章最后面，有我解决问题的方法
先建个钉钉群，并加好机器人
此时，机器人已经添加完毕，接下来编写我们连接机器人小哥的代码
import com.alibaba.fastjson.JSON;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import java.util.List;
import java.util.Map;
/**
-
@author yanghao
-
@version DingTalkTest.java, v 0.1 2019-03-29 11:36
*/
public class DingTalkTest {
public static void main(String[] args){
<span class="token keyword">try</span> <span class="token punctuation">{<!-- --></span> <span class="token comment">//钉钉机器人地址（配置机器人的webhook）</span> String dingUrl <span class="token operator">=</span> <span class="token string">"https://oapi.dingtalk.com/robot/send?access_token=............"</span><span class="token punctuation">;</span> <span class="token comment">//是否通知所有人</span> <span class="token keyword">boolean</span> isAtAll <span class="token operator">=</span> <span class="token boolean">false</span><span class="token punctuation">;</span> <span class="token comment">//通知具体人的手机号码列表</span> List<span class="token generics function"><span class="token punctuation"><</span>String<span class="token punctuation">></span></span> mobileList <span class="token operator">=</span> Lists<span class="token punctuation">.</span><span class="token function">newArrayList</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">//钉钉机器人消息内容</span> String content <span class="token operator">=</span> <span class="token string">"小哥，你好！"</span><span class="token punctuation">;</span> <span class="token comment">//组装请求内容</span> String reqStr <span class="token operator">=</span> <span class="token function">buildReqStr</span><span class="token punctuation">(</span>content<span class="token punctuation">,</span> isAtAll<span class="token punctuation">,</span> mobileList<span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">//推送消息（http请求）</span> String result <span class="token operator">=</span> HttpUtil<span class="token punctuation">.</span><span class="token function">postJson</span><span class="token punctuation">(</span>dingUrl<span class="token punctuation">,</span> reqStr<span class="token punctuation">)</span><span class="token punctuation">;</span> System<span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span><span class="token string">"result == "</span> <span class="token operator">+</span> result<span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span><span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">Exception</span> e<span class="token punctuation">)</span><span class="token punctuation">{<!-- --></span> e<span class="token punctuation">.</span><span class="token function">printStackTrace</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span>}
/**
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组装请求报文
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@param content
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@return
*/
private static String buildReqStr(String content, boolean isAtAll, List<String> mobileList) {
//消息内容
Map<String, String> contentMap = Maps.newHashMap();
contentMap.put(“content”, content);//通知人
Map<String, Object> atMap = Maps.newHashMap();
//1.是否通知所有人
atMap.put(“isAtAll”, isAtAll);
//2.通知具体人的手机号码列表
atMap.put(“atMobiles”, mobileList);Map<String, Object> reqMap = Maps.newHashMap();
reqMap.put(“msgtype”, “text”);
reqMap.put(“text”, contentMap);
reqMap.put(“at”, atMap);return JSON.toJSONString(reqMap);
}
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}
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运行结果如下：
result == {"errmsg":"ok","errcode":0}
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钉钉群显示消息：
ok,简单的消息推送，这就完成了！
我们再来测试一下通知所有人和通知具体人
- 将isAtAll更改为true
//是否通知所有人
boolean isAtAll = true;
//通知具体人的手机号码列表
List<String> mobileList = Lists.newArrayList();
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- 增加通知人号码列表（注：isAtAll和mobileList 不能同时生效）
//是否通知所有人
boolean isAtAll = false;
//通知具体人的手机号码列表
List<String> mobileList = Lists.newArrayList();
mobileList.add("182********");
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再来测试一下特殊符号
- 换行标识符
/**
* 换行标识符
*/
private static final String NEWLINE = "\n";
//钉钉机器人消息内容
//String content = “小哥，你好！”;
StringBuffer sb = new StringBuffer();
sb.append(“小哥，你好！”)
.append(NEWLINE)
.append(“看会书”);
String content = sb.toString();
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- emoji图片
先获取emoji图片的unicode编码
编写代码如下：
/**
* 苹果unicode编码
*/
private static final String APPLE = "\ud83c\udf4e";
//钉钉机器人消息内容
//String content = “小哥，你好！”;
StringBuffer sb = new StringBuffer();
sb.append(“小哥，你好！”)
.append(NEWLINE)
.append(“看会书”)
.append(NEWLINE)
.append(“吃个”).append(APPLE);
String content = sb.toString();
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通常在我们的项目中，作为一些告警加入，方便且实用
很有意思的钉钉机器人，很多实用技巧，可以深入去探索一波！
更新于2019-12-05
很多小伙伴留言咨询http请求，这边给大家2个http请求代码
1. maven项目
添加依赖
<!--糊涂工具-->
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>4.0.12</version>
</dependency>
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http请求代码
private static final int timeout = 10000;
public static String postJson(String url, String reqStr) {
String body = null;
try {
body = HttpRequest.post(url).body(reqStr).timeout(timeout).execute().body();
} catch (Exception e) {
e.printStackTrace();
}
return body;
}
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2. 非maven项目
添加jar包
httpclient-xxx.jar
commons-logging-xxx.jar
http请求代码
public static String postJson(String url, String body) { // 创建Httpclient对象 CloseableHttpClient httpClient = createCustomClient(); CloseableHttpResponse response = null; String resultString = null; try { // 创建Http Post请求 HttpPost httpPost = new HttpPost(url); httpPost.addHeader("Content-Type", "application/json");<span class="token keyword">if</span> <span class="token punctuation">(</span>body <span class="token operator">!=</span> null<span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span> httpPost<span class="token punctuation">.</span><span class="token function">setEntity</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">StringEntity</span><span class="token punctuation">(</span>body<span class="token punctuation">,</span> <span class="token string">"utf-8"</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span> <span class="token comment">// 执行http请求</span> response <span class="token operator">=</span> httpClient<span class="token punctuation">.</span><span class="token function">execute</span><span class="token punctuation">(</span>httpPost<span class="token punctuation">)</span><span class="token punctuation">;</span> resultString <span class="token operator">=</span> EntityUtils<span class="token punctuation">.</span><span class="token function">toString</span><span class="token punctuation">(</span>response<span class="token punctuation">.</span><span class="token function">getEntity</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">,</span> <span class="token string">"utf-8"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">Exception</span> e<span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span> e<span class="token punctuation">.</span><span class="token function">printStackTrace</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span> <span class="token keyword">finally</span> <span class="token punctuation">{<!-- --></span> <span class="token keyword">try</span> <span class="token punctuation">{<!-- --></span> <span class="token keyword">if</span> <span class="token punctuation">(</span>response <span class="token operator">!=</span> null<span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span> response<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">Exception</span> e<span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span> e<span class="token punctuation">.</span><span class="token function">printStackTrace</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span> <span class="token keyword">return</span> resultString<span class="token punctuation">;</span> <span class="token punctuation">}</span> <span class="token keyword">public</span> <span class="token keyword">static</span> CloseableHttpClient <span class="token function">createCustomClient</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span> RequestConfig defaultRequestConfig <span class="token operator">=</span> RequestConfig<span class="token punctuation">.</span><span class="token function">custom</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token function">setSocketTimeout</span><span class="token punctuation">(</span><span class="token number">120</span> <span class="token operator">*</span> <span class="token number">1000</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token function">setConnectTimeout</span><span class="token punctuation">(</span><span class="token number">120</span> <span class="token operator">*</span> <span class="token number">1000</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token function">setConnectionRequestTimeout</span><span class="token punctuation">(</span><span class="token number">120</span> <span class="token operator">*</span> <span class="token number">1000</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token function">setStaleConnectionCheckEnabled</span><span class="token punctuation">(</span><span class="token boolean">true</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token function">build</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token keyword">return</span> HttpClients<span class="token punctuation">.</span><span class="token function">custom</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">setDefaultRequestConfig</span><span class="token punctuation">(</span>defaultRequestConfig<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">build</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span>
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方法仅供参考，项目里面有现成的http请求，可以直接用！
以下是我自己写的，是我看原博客走的误区解决办法，而不是说源博客不对
1、需要导入谷歌依赖才能使用Lists和Maps
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
<!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>29.0-jre</version>
</dependency>
2、如果HttpUtil.postJson，就用以下代码替换，并引入依赖
private static final int timeout = 10000; //这一行代码写在全局变量位置上
String body =HttpRequest.post(url).body(reqStr).timeout(timeout).execute().body();//这行代码替换掉HttpUtil.postJson那一行
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>4.0.12</version>
</dependency>