Java io.jsonwebtoken.MalformedJwtException：无法读取 JSON 值：

Question

我编写了以下函数来解析声明：

  public Claims getAllClaimsFromToken(String token) {
    return Jwts.parser().setSigningKey(config.getJwtSecret()).parseClaimsJws(token).getBody();
}

当我尝试使用以下字符串调用该函数时：

yJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJicGF3YW4iLCJyb2xlIjpudWxsLCJlbmFibGUiOm51bGwsImV4cCI6MTUzNDgyMzUyNSwiaWF0IjoxNTM0Nzk0NzI1fQ.65PPknMebR53ykLm-EBIunjFJvlV-vL-pfTOtbBLtnQ

我收到以下错误：

io.jsonwebtoken.MalformedJwtException: Unable to read JSON value: Ș[Ȏ��̍M��
at io.jsonwebtoken.impl.DefaultJwtParser.readValue(DefaultJwtParser.java:554) ~[jjwt-0.9.1.jar:0.9.1]
at io.jsonwebtoken.impl.DefaultJwtParser.parse(DefaultJwtParser.java:252) ~[jjwt-0.9.1.jar:0.9.1]
at io.jsonwebtoken.impl.DefaultJwtParser.parse(DefaultJwtParser.java:481) ~[jjwt-0.9.1.jar:0.9.1]
at io.jsonwebtoken.impl.DefaultJwtParser.parseClaimsJws(DefaultJwtParser.java:541) ~[jjwt-0.9.1.jar:0.9.1]
at com.saralpasal.api.security.JWTUtil.getAllClaimsFromToken(JWTUtil.java:33) ~[classes/:na]
at com.saralpasal.api.security.JWTUtil.getUsernameFromToken(JWTUtil.java:29) ~[classes/:na]
at com.saralpasal.api.security.AuthenticationManager.getUserNameFromToken(AuthenticationManager.java:51) ~[classes/:na]
at com.saralpasal.api.security.AuthenticationManager.authenticate(AuthenticationManager.java:37) ~[classes/:na]
at com.saralpasal.api.security.SecurityContextRepository.load(SecurityContextRepository.java:34) [classes/:na]
at org.springframework.security.web.server.context.ReactorContextWebFilter.withSecurityContext(ReactorContextWebFilter.java:51) [spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.security.web.server.context.ReactorContextWebFilter.lambda$filter$0(ReactorContextWebFilter.java:46) [spring-security-web-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at reactor.core.publisher.MonoSubscriberContext.subscribe(MonoSubscriberContext.java:40) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:115) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxMapFuseable$MapFuseableSubscriber.onNext(FluxMapFuseable.java:115) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1083) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoFlatMap$FlatMapInner.onNext(MonoFlatMap.java:241) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1083) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoCollectList$MonoBufferAllSubscriber.onComplete(MonoCollectList.java:117) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxIterable$IterableSubscription.fastPath(FluxIterable.java:334) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:199) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoCollectList$MonoBufferAllSubscriber.onSubscribe(MonoCollectList.java:90) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:140) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:64) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoCollectList.subscribe(MonoCollectList.java:59) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:150) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:67) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:76) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxFilterWhen$FluxFilterWhenSubscriber.drain(FluxFilterWhen.java:287) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxFilterWhen$FluxFilterWhenSubscriber.onNext(FluxFilterWhen.java:131) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxIterable$IterableSubscription.slowPath(FluxIterable.java:244) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxIterable$IterableSubscription.request(FluxIterable.java:202) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxFilterWhen$FluxFilterWhenSubscriber.onSubscribe(FluxFilterWhen.java:190) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:140) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxIterable.subscribe(FluxIterable.java:64) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.FluxFilterWhen.subscribe(FluxFilterWhen.java:68) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoNext.subscribe(MonoNext.java:40) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoSwitchIfEmpty.subscribe(MonoSwitchIfEmpty.java:44) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoFlatMap.subscribe(MonoFlatMap.java:60) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoMapFuseable.subscribe(MonoMapFuseable.java:59) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoMapFuseable.subscribe(MonoMapFuseable.java:59) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoFlatMap.subscribe(MonoFlatMap.java:60) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:53) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoOnErrorResume.subscribe(MonoOnErrorResume.java:44) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.Mono.subscribe(Mono.java:3080) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.drain(MonoIgnoreThen.java:172) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:56) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoPeekFuseable.subscribe(MonoPeekFuseable.java:70) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.core.publisher.MonoPeekTerminal.subscribe(MonoPeekTerminal.java:61) ~[reactor-core-3.1.8.RELEASE.jar:3.1.8.RELEASE]
at reactor.ipc.netty.channel.ChannelOperations.applyHandler(ChannelOperations.java:380) ~[reactor-netty-0.7.8.RELEASE.jar:0.7.8.RELEASE]
at reactor.ipc.netty.http.server.HttpServerOperations.onHandlerStart(HttpServerOperations.java:398) ~[reactor-netty-0.7.8.RELEASE.jar:0.7.8.RELEASE]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) ~[netty-common-4.1.27.Final.jar:4.1.27.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:404) ~[netty-common-4.1.27.Final.jar:4.1.27.Final]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:322) ~[netty-transport-native-epoll-4.1.27.Final-linux-x86_64.jar:4.1.27.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884) ~[netty-common-4.1.27.Final.jar:4.1.27.Final]
at java.base/java.lang.Thread.run(Thread.java:844) ~[na:na]

引起：com.fasterxml.jackson.core.JsonParseException：无法识别的标记“ş”：正在等待（“true”、“false”或“null”） 在[来源：（字符串）“ş[ş̍M��”；行：1，列：2]

无论我尝试什么，我都找不到错误的原因。 任何人都经历过同样的错误。任何帮助将不胜感激。

非常感谢

Answer 1

io.jsonwebtoken.MalformedJwtException：JWT 字符串必须恰好包含 2 个句点字符。找到：“X”

这意味着 JWT 令牌不是有效令牌，并且它不包含分隔符分隔符

.

。 请检查您为 JWT 生成令牌的机制。

Answer 2

您发布的字符串不是有效的 JWT。更具体地说，标头部分（即第一个

.

之前的部分）缺少

e

，这会在解析时导致错误。

添加

e

后，您的解码令牌如下所示：

{
  "alg": "HS256"
}
{
  "sub": "bpawan",
  "role": null,
  "enable": null,
  "exp": 1534823525,
  "iat": 1534794725
}

Answer 3

您的 JWT 令牌从一开始就缺少

e

。 JWT 总是以

ey

开头，所以 插入

e

并再次检查。

Answer 4

如果您在邮递员的承载区域中写入承载关键字，则会出现此错误。

Answer 5

您收到此错误是因为您没有在标头中添加正确的授权令牌，授权令牌有一些模式，因此请勿对其进行修改并在令牌之前使用承载（例如“Bearer eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJmb28iLCJleHAiOjE2MjIzNTY1MzQsImlhdCI6MTYyMjMyMDUzNH0.XOtVju iEKDg6m367hUA1qc9owqzkCe2OmsBB4_mRFcU ").

您的授权令牌始终以 ey 开头。

谢谢你。