Could not initialize class io.jsonwebtoken.impl.DefaultJwtBuilder

使用jsonwebtoken出现如下错误

Could not initialize class io.jsonwebtoken.impl.DefaultJwtBuilder
java.lang.NoClassDefFoundError: Could not initialize class io.jsonwebtoken.impl.DefaultJwtBuilder
	at io.jsonwebtoken.Jwts.builder(Jwts.java:116) ~[jjwt-0.7.0.jar:0.7.0]

原因,因为jackson-databindb版本冲突，直接去掉了依赖

jwt必须依赖Jackson所以报错了

出错时候的配置

<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt</artifactId>
    <version>0.7.0</version>
    <exclusions>
        <exclusion>
            <artifactId>jackson-databind</artifactId>
            <groupId>com.fasterxml.jackson.core</groupId>
        </exclusion>
    </exclusions>
</dependency>

解决办法

<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt</artifactId>
    <version>0.7.0</version>
</dependency>