添加JWT工具类

common/common-util/pom.xml

@@ -10,6 +10,12 @@
     <modelVersion>4.0.0</modelVersion>
 
     <artifactId>common-util</artifactId>
+    <dependencies>
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt</artifactId>
+        </dependency>
 
+    </dependencies>
 
 </project>
\ No newline at end of file

common/common-util/src/main/java/com/atguigu/yygu/common/helper/JwtHelper.java

+package com.atguigu.yygu.common.helper;
+
+import io.jsonwebtoken.*;
+import org.springframework.util.StringUtils;
+
+import java.util.Date;
+
+/**
+ * JWT工具类
+ */
+public class JwtHelper {
+    //过期时间
+    private static long tokenExpiration = 24*60*60*1000;
+    //token签名密钥
+    private static String tokenSignKey = "123456";
+
+    //根据参数生成token
+    public static String createToken(Long userId, String userName) {
+        String token = Jwts.builder()
+                .setSubject("YYGH-USER")
+                //设置过期时间 30分钟
+                .setExpiration(new Date(System.currentTimeMillis() + tokenExpiration))
+                //设置主题信息  用户id和用户名称
+                .claim("userId", userId)
+                .claim("userName", userName)
+                //签名哈希
+                .signWith(SignatureAlgorithm.HS512, tokenSignKey)
+                .compressWith(CompressionCodecs.GZIP)
+                .compact();
+        return token;
+    }
+    //根据token字符串得到用户id
+    public static Long getUserId(String token) {
+        if(StringUtils.isEmpty(token)) return null;
+        Jws<Claims> claimsJws = Jwts.parser().setSigningKey(tokenSignKey).parseClaimsJws(token);
+        Claims claims = claimsJws.getBody();
+        Integer userId = (Integer)claims.get("userId");
+        return userId.longValue();
+    }
+    //根据token字符串得到用户名称
+    public static String getUserName(String token) {
+        if(StringUtils.isEmpty(token)) return "";
+        Jws<Claims> claimsJws 
+            = Jwts.parser().setSigningKey(tokenSignKey).parseClaimsJws(token);
+        Claims claims = claimsJws.getBody();
+        return (String)claims.get("userName");
+    }
+    public static void main(String[] args) {
+        String token = JwtHelper.createToken(1L, "lucy");
+        System.out.println(token);
+        System.out.println(JwtHelper.getUserId(token));
+        System.out.println(JwtHelper.getUserName(token));
+    }
+}

common/common-util/src/main/java/com/atguigu/yygu/common/result/ResultCodeEnum.java

@@ -20,7 +20,7 @@ public enum ResultCodeEnum {
 
     CODE_ERROR(210, "验证码错误"),
 //    LOGIN_MOBLE_ERROR(211, "账号不正确"),
-    LOGIN_DISABLED_ERROR(212, "改用户已被禁用"),
+    LOGIN_DISABLED_ERROR(212, "该用户已被禁用"),
     REGISTER_MOBLE_ERROR(213, "手机号已被使用"),
     LOGIN_AURH(214, "需要登录"),
     LOGIN_ACL(215, "没有权限"),