获取异常 java.lang.NoClassDefFoundError: 无法初始化类 javax.xml.bind.DatatypeConverterImpl

Question

在实现 Jwt Spring Security 实现时出现以下异常：

java.lang.NoClassDefFoundError: 无法初始化类 javax.xml.bind.DatatypeConverterImpl 。

在 Spring Boot 项目中

pom.xml 中的依赖如下：

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <!-- For Working with Json Web Tokens (JWT) -->
    <dependency>
        <groupId>io.jsonwebtoken</groupId>
        <artifactId>jjwt</artifactId>
        <version>0.9.0</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <!-- marked the embedded servlet container as provided -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>com.zaxxer</groupId>
        <artifactId>HikariCP</artifactId>
        <version>2.6.0</version>
    </dependency>
    <!-- hot swapping, disable cache for template, enable live reload -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
        <version>1.3.3.RELEASE</version>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    
    <!-- Optional, for bootstrap -->
    <dependency>
        <groupId>org.webjars</groupId>
        <artifactId>bootstrap</artifactId>
        <version>3.3.7</version>
    </dependency>

    <dependency>
        <groupId>com.oracle</groupId>
        <artifactId>ojdbc14</artifactId>
        <scope>compile</scope>
        <version>1.0</version>
    </dependency>
    
    <dependency>
        <groupId>javax.activation</groupId>
        <artifactId>activation</artifactId>
        <version>1.1</version>
    </dependency>
    <dependency>
        <groupId>org.modelmapper</groupId>
        <artifactId>modelmapper</artifactId>
        <version>2.3.0</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-log4j</artifactId>
        <version>1.2.5.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jersey</artifactId>
    </dependency>
    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-client</artifactId>
        <version>1.8</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
        <version>3.7</version>
    </dependency>
    <dependency>
        <groupId>org.json</groupId>
        <artifactId>json</artifactId>
        <version>20180813</version>
    </dependency>

</dependencies>

详细的引导程序如下：

Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: 
Could not initialize class javax.xml.bind.DatatypeConverterImpl
] with root cause
java.lang.NoClassDefFoundError: Could not initialize class javax.xml.bind.DatatypeConverterImpl
    at javax.xml.bind.DatatypeConverter.initConverter(Unknown Source)
    at javax.xml.bind.DatatypeConverter.parseBase64Binary(Unknown Source)
    at io.jsonwebtoken.impl.Base64Codec.decode(Base64Codec.java:26)
    at io.jsonwebtoken.impl.DefaultJwtBuilder.signWith(DefaultJwtBuilder.java:99)
    at com.mpcz.services.jwt.security.JwtTokenUtil.generateToken(JwtTokenUtil.java:92)
    at com.mpcz.services.jwt.security.JwtTokenUtil.generateToken(JwtTokenUtil.java:85)
    at com.mpcz.services.controller.ConsumerLoginController.register(ConsumerLoginController.java:183)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

在以下代码中生成 JWT 令牌时出现上述错误：

Jwts.builder().setClaims(claims).setExpiration(generateExpirationDate()).signWith(SignatureAlgorithm.HS512, secret).compact();

Answer 1

为了将来参考，解决方案是添加以下依赖项以避免 java 11 问题：

对于 Maven 项目：

<dependency> 
    <groupId>javax.xml.bind</groupId> 
    <artifactId>jaxb-api</artifactId>
    <version>2.1</version>
</dependency>

对于 gradle 项目：

compile 'javax.xml.bind:jaxb-api:2.1'

归功于@Giggs

Answer 2

添加 JAXB API 依赖项解决了我的问题。

<!-- https://mvnrepository.com/artifact/javax.xml.bind/jaxb-api -->

<dependency>
    <groupId>javax.xml.bind</groupId>
    <artifactId>jaxb-api</artifactId>
    <version>2.3.1</version>
</dependency>

Answer 3

在使用 OpenJDK 11 时，这对我来说效果也很好。无需任何代码修改。

我在前端类上使用 java.base.* enc/dec 而不是 javax.xml.bind.DatatypeConverter，但 jjwt (0.9.0) 在生成令牌时将其带回。

你的解决方案很好，不必将 Xercesxml 添加到我的 pom.xml 中，可能是因为我只做基本的 jwt。

问候，

德兹曼！