微信开发第一步（接入配置）

1.服务器，令牌。。

2.url访问地址

package com.tianxi.controller;

import com.tianxi.util.CheckUtil;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
* Created by sq on 2017/7/12 0012.
* description:微信公众号端
*/
@Controller
@RequestMapping(value = "/weixin",produces = "application/json;charset=UTF-8")
public class WeiXinController {

/**
* 配置接入
* @param request
* @param response
* @return
* @throws IOException
*/
@RequestMapping(value = {"/index"})
@ResponseBody
public String WeiXin(HttpServletRequest request, HttpServletResponse response) throws IOException {
String signature = request.getParameter("signature");
String timestamp = request.getParameter("timestamp");
String nonce = request.getParameter("nonce");
String echostr = request.getParameter("echostr");

PrintWriter out = response.getWriter();

if (CheckUtil.checkSinature(signature, timestamp, nonce)) {
out.print(echostr);
}
out.close();
return null;
}
}
2.

package com.tianxi.util;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;

/**
* Created by sq on 2017/7/12 0012.
* description:
*/
public class CheckUtil {

private static final String token = "weixin";

public static  boolean checkSinature(String signature,String timestamp,String nonce){
String[] arr = new String[]{token,timestamp,nonce};
//排序
Arrays.sort(arr);
//生成字符串
StringBuffer content = new StringBuffer();
for(int i = 0;i<arr.length;i++){
content.append(arr[i]);
}
//sha1加密
String temp = getSha1(content.toString());

return temp.equals(signature);
}

public static String getSha1(String str){
if (null == str || 0 == str.length()){
return null;
}
char[] hexDigits = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'a', 'b', 'c', 'd', 'e', 'f'};
try {
MessageDigest mdTemp = MessageDigest.getInstance("SHA1");
mdTemp.update(str.getBytes("UTF-8"));

byte[] md = mdTemp.digest();
int j = md.length;
char[] buf = new char[j * 2];
int k = 0;
for (int i = 0; i < j; i++) {
byte byte0 = md[i];
buf[k++] = hexDigits[byte0 >>> 4 & 0xf];
buf[k++] = hexDigits[byte0 & 0xf];
}
return new String(buf);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return null;
}
}

只有书写以上代码才可进行微信公众号服务器配置