java向微信公众号---测试号申请步骤和调试

微信公众号初次开发

• 开发准备
• • 翻文档
  • • 通过测试号认证
    • • 代码后端认证

其他操作

书接下文：微信发送模板和图文消息.
书接下文：后台获取授权用户的openId.

开发准备

这两天遇到一个新的需求就是对接微信公众号，之前也没做过翻文档！！！

翻文档

链接: 官方文档.

先拿个测试好搞一下
这个测试号就是公众号，不过没有微信的后台也就是无法点击菜单进入内嵌H5，不过调通后端代码够用了。

通过测试号认证

想要通过认证要保证微信可以访问到你，所以配置内网穿透。然后他会像你填写的接口路径中发送get请求

内网穿透

我的另一篇文章
链接: 花生壳配置.

代码后端认证

maven

这些就是项目使用到的所有依赖

    <dependencies>
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>1.13</version>
        </dependency>
        <dependency>
            <groupId>org.jolokia</groupId>
            <artifactId>jolokia-core</artifactId>
            <version>1.6.0</version>
        </dependency>

        <dependency>
            <groupId>net.coobird</groupId>
            <artifactId>thumbnailator</artifactId>
            <version>0.4.8</version>
        </dependency>

        <dependency>
            <groupId>com.github.binarywang</groupId>
            <artifactId>weixin-java-mp</artifactId>
            <version>3.6.0</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.16</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.baomidou/mybatis-plus -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.0.0</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.61</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.8.1</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-autoconfigure</artifactId>
            <version>1.3.2</version>
        </dependency>
        <dependency>
            <groupId>com.squareup.okhttp3</groupId>
            <artifactId>okhttp</artifactId>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus</artifactId>
            <version>3.1.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.7.0</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.7.0</version>
        </dependency>

        <dependency>
            <groupId>javax.persistence</groupId>
            <artifactId>persistence-api</artifactId>
            <version>1.0</version>
        </dependency>

        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.9</version>
        </dependency>

    </dependencies>

application.yml

yml配置

###################  项目启动端口  ###################
server:
  port: 80 #微信要使用80端口

Util

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
 
/** 
 * 请求校验工具类 
 *  
 * @author HXM 
 * @date 2019-07-6 
 */  
public class SignUtil {  
    // 与接口配置信息中的Token要一致  
    private static String token = "szl";
  
    /** 
     * 验证签名 
     *  
     * @param signature 
     * @param timestamp 
     * @param nonce 
     * @return 
     */  
    public static boolean checkSignature(String signature, String timestamp, String nonce) {  
        String[] arr = new String[] { token, timestamp, nonce };  
        // 将token、timestamp、nonce三个参数进行字典序排序  
        Arrays.sort(arr);  
        StringBuilder content = new StringBuilder();  
        for (int i = 0; i < arr.length; i++) {  
            content.append(arr[i]);  
        }  
        MessageDigest md = null;  
        String tmpStr = null;  
  
        try {  
            md = MessageDigest.getInstance("SHA-1");  
            // 将三个参数字符串拼接成一个字符串进行sha1加密  
            byte[] digest = md.digest(content.toString().getBytes());  
            tmpStr = byteToStr(digest);  
        } catch (NoSuchAlgorithmException e) {  
            e.printStackTrace();  
        }  
  
        content = null;  
        // 将sha1加密后的字符串可与signature对比，标识该请求来源于微信  
        return tmpStr != null ? tmpStr.equals(signature.toUpperCase()) : false;  
    }  
  
    /** 
     * 将字节数组转换为十六进制字符串 
     *  
     * @param byteArray 
     * @return 
     */  
    private static String byteToStr(byte[] byteArray) {  
        String strDigest = "";  
        for (int i = 0; i < byteArray.length; i++) {  
            strDigest += byteToHexStr(byteArray[i]);  
        }  
        return strDigest;  
    }  
  
    /** 
     * 将字节转换为十六进制字符串 
     *  
     * @param mByte 
     * @return 
     */  
    private static String byteToHexStr(byte mByte) {  
        char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };  
        char[] tempArr = new char[2];  
        tempArr[0] = Digit[(mByte >>> 4) & 0X0F];  
        tempArr[1] = Digit[mByte & 0X0F];  
  
        String s = new String(tempArr);  
        return s;  
    }  
}  

controller

这里**@RequestMapping("/wx")**和@GetMapping(value = “/reply”)的路径 是上面微信测试号中填写的路径地址

import javax.servlet.http.HttpServletRequest;

import com.shangqu.datapush.buildsite.util.SignUtil;
import io.swagger.annotations.Api;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.io.PrintWriter;
import java.util.Enumeration;
import javax.servlet.http.HttpServletResponse;

/**
 * 微信校验 -- 测试号校验
 */
@Api( value = "AgentWeixinReplyController", tags = "微信校验")
@RestController
@RequestMapping("/wx")
@CrossOrigin
public class AgentWeixinReplyController {
	
 
	
 
	@GetMapping(value = "/reply")
	public void get(HttpServletRequest request, HttpServletResponse response) throws Exception {

		System.out.println("========WechatController========= ");
		
 
		Enumeration pNames = request.getParameterNames();
		while (pNames.hasMoreElements()) {
			String name = (String) pNames.nextElement();
			String value = request.getParameter(name);
			// out.print(name + "=" + value);
			String log = "name =" + name + "     value =" + value;
		}
		System.out.println("========WechatControllertets========= ");
		String signature = request.getParameter("signature");/// 微信加密签名
		String timestamp = request.getParameter("timestamp");/// 时间戳
		String nonce = request.getParameter("nonce"); /// 随机数
		String echostr = request.getParameter("echostr"); // 随机字符串
		PrintWriter out = response.getWriter();
 
		 if (SignUtil.checkSignature(signature, timestamp, nonce)) {
			 System.out.println("校验成功！！！！！！！！！！！！！");
	          out.print(echostr);
	      }
		
		out.close();
		out = null;
 
	}
 
}

出现错误

服务启动成功80端口然后点击提交出现：

确保域名+路径是可以访问的
就像这样：

这就是正常的
如果无任何反应
诊断内网穿透配置查看IP+端口是否正确
重新启动内网穿透和服务

全部正常之后点击提交就会看到

本文地址：https://blog.csdn.net/weixin_44440642/article/details/112219357