无法将JSON值反序列化为类型
[英]Failed to de-serialize JSON value into type
问题描述
I am trying to de-serialize a post request in my web service but I end up getting an HTTP 500 saying javax.json.bind.JsonbException: Error deserialize JSON value into type: class [C . 
我试图在我的Web服务中反序列化一个post请求，但我最终得到一个HTTP 500说javax.json.bind.JsonbException: Error deserialize JSON value into type: class [C I am using Jackson to handle the JSON stuff. 我正在使用Jackson来处理JSON的东西。
This is the JSON String I'm sending from Postman: 这是我从Postman发送的JSON字符串：
{"firstName":"FirstName","middleName":"middleName","lastName":"LastName","name":"SomeName","password":"$0meR@nd0m","creationTimeStamp":1533950475466}
This is my POJO : 这是我的POJO：
@XmlRootElement
public class UserFormInterceptor {
@Pattern(regexp = "^[\\S][\\p{L} .'-]+$") @Size(min = 2, max = 64) @NotEmpty @NotNull
private String firstName;
@Pattern(regexp = "^[\\S][\\p{L} .'-]+$") @Size(min = 2, max = 64)
private String middleName;
@Pattern(regexp = "^[\\S][\\p{L} .'-]+$") @Size(min = 2, max = 64) @NotEmpty @NotNull
private String lastName;
@Pattern(regexp = "^[a-zA-z][\\w]*$") @Size(min = 8, max = 64) @NotEmpty @NotNull
private String name;
@Pattern(regexp = "(?=.*?[A-Z]+)(?=.*?[0-9]+)(?=.*?[\\p{Punct}]+).*") @Size(min = 8, max = 64) @NotEmpty @NotNull
private char[] password;
@Positive @NotEmpty @NotNull
private long creationTimeStamp;
public UserFormInterceptor() {}
public UserFormInterceptor(@NotNull String name, @NotNull String password, @Positive long creationTimeStamp, @NotNull String firstName, String middleName, @NotNull String lastName) {
this.name = name;
this.password = password.toCharArray();
this.creationTimeStamp = creationTimeStamp;
this.firstName = firstName;
this.middleName = middleName;
this.lastName = lastName;
}
@NotNull
public String getFirstName() {
return firstName;
}
public void setFirstName(@NotNull String firstName) {
this.firstName = firstName;
}
public String getMiddleName() {
return middleName;
}
public void setMiddleName(String middleName) {
this.middleName = middleName;
}
@NotNull
public String getLastName() {
return lastName;
}
public void setLastName(@NotNull String lastName) {
this.lastName = lastName;
}
@NotNull
public String getName() {
return name;
}
public void setName(@NotNull String name) {
this.name = name;
}
@NotNull
public char[] getPassword() {
return password;
}
public void setPassword(@NotNull String password) {
this.password = password.toCharArray();
}
public long getCreationTimeStamp() {
return creationTimeStamp;
}
public void setCreationTimeStamp(long creationTimeStamp) {
this.creationTimeStamp = creationTimeStamp;
}
public Map<String, Object> buildMap() {
Map<String,Object> returnMap = new HashMap<>();
returnMap.put("name",this.getName());
returnMap.put("firstName",this.firstName);
returnMap.put("middleName",this.middleName==null ? "" : this.middleName);
returnMap.put("lastName",this.lastName);
returnMap.put("creationTimeStamp",Long.toString(this.getCreationTimeStamp()));
return returnMap;
}
}
This is my request handler class: 这是我的请求处理程序类：
@Path("/users")
public class UserController {
private static final UserDAO userDao = new UserDAO();
@POST
@Path(value = "/signup")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(value = MediaType.APPLICATION_JSON)
public Response signUpUser(@Valid @NotNull UserFormInterceptor userSignUpForm) {
UserCreatorModel userCreatorModel = (UserCreatorModel) new UserCreatorModel(userSignUpForm)
.setUniqueId();
String response = userDao.addCustomer(userCreatorModel);
return Response.ok(response).build();
}
}
These are my Maven dependencies for Jackson: 这些是我对杰克逊的Maven依赖：
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.jaxrs/jackson-jaxrs-json-provider -->
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
<version>2.9.6</version>
</dependency>
And this is the stack trace: 这是堆栈跟踪：
StandardWrapperValve[Controller Servlet]: Servlet.service() for servlet Controller Servlet threw exception
javax.json.bind.JsonbException: Error deserialize JSON value into type: class [C.
at org.eclipse.yasson.internal.serializer.DeserializerBuilder.build(DeserializerBuilder.java:113)
at org.eclipse.yasson.internal.serializer.ObjectDeserializer.deserializeNext(ObjectDeserializer.java:161)
at org.eclipse.yasson.internal.serializer.AbstractContainerDeserializer.deserializeInternal(AbstractContainerDeserializer.java:84)
at org.eclipse.yasson.internal.serializer.AbstractContainerDeserializer.deserialize(AbstractContainerDeserializer.java:60)
at org.eclipse.yasson.internal.Unmarshaller.deserializeItem(Unmarshaller.java:57)
at org.eclipse.yasson.internal.Unmarshaller.deserialize(Unmarshaller.java:50)
at org.eclipse.yasson.internal.JsonBinding.deserialize(JsonBinding.java:45)
at org.eclipse.yasson.internal.JsonBinding.fromJson(JsonBinding.java:85)
at org.glassfish.jersey.jsonb.internal.JsonBindingProvider.readFrom(JsonBindingProvider.java:99)
at org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$TerminalReaderInterceptor.invokeReadFrom(ReaderInterceptorExecutor.java:257)
at org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$TerminalReaderInterceptor.aroundReadFrom(ReaderInterceptorExecutor.java:236)
at org.glassfish.jersey.message.internal.ReaderInterceptorExecutor.proceed(ReaderInterceptorExecutor.java:156)
at org.glassfish.jersey.server.internal.MappableExceptionWrapperInterceptor.aroundReadFrom(MappableExceptionWrapperInterceptor.java:73)
at org.glassfish.jersey.message.internal.ReaderInterceptorExecutor.proceed(ReaderInterceptorExecutor.java:156)
at org.glassfish.jersey.message.internal.MessageBodyFactory.readFrom(MessageBodyFactory.java:1091)
at org.glassfish.jersey.message.internal.InboundMessageContext.readEntity(InboundMessageContext.java:874)
at org.glassfish.jersey.server.ContainerRequest.readEntity(ContainerRequest.java:271)
at org.glassfish.jersey.server.internal.inject.EntityParamValueParamProvider$EntityValueSupplier.apply(EntityParamValueParamProvider.java:97)
at org.glassfish.jersey.server.internal.inject.EntityParamValueParamProvider$EntityValueSupplier.apply(EntityParamValueParamProvider.java:80)
at org.glassfish.jersey.server.spi.internal.ParamValueFactoryWithSource.apply(ParamValueFactoryWithSource.java:74)
at org.glassfish.jersey.server.spi.internal.ParameterValueHelper.getParameterValues(ParameterValueHelper.java:92)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$AbstractMethodParamInvoker.getParamValues(JavaResourceMethodDispatcherProvider.java:133)
at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:200)
at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:103)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:493)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:415)
at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:104)
at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:277)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:272)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:268)
at org.glassfish.jersey.internal.Errors.process(Errors.java:316)
at org.glassfish.jersey.internal.Errors.process(Errors.java:298)
at org.glassfish.jersey.internal.Errors.process(Errors.java:268)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:289)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:256)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:703)
at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:416)
at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:370)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:389)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:342)
at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:229)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1580)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:258)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:652)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:591)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:371)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:238)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:463)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:168)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:242)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:539)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:593)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:573)
at java.lang.Thread.run(Thread.java:748)
]]
I have added the jars for the Jackson dependencies to the lib directory of the app server as well. 我已经将Jackson依赖项的jar添加到app服务器的lib目录中。 I am using GlassFish 5.0 and Jersey 2.26. 我使用的是GlassFish 5.0和Jersey 2.26。 What is it that I am doing wrong? 我做错了什么？ How to resolve this? 怎么解决这个？
1 个解决方案
解决方案1
3 已采纳 2018-08-11 02:05:43
The clue is in the error message: 线索在错误消息中：
Error deserialize JSON value into type: class [C
The class [C is the class that corresponds to char[] . 类[C是与char[]对应的类。
Looking at your code, you have declared password as: 查看代码，您已将password声明为：
private char[] password;
Change it to 将其更改为
private String password;
What is going on here is that Jackson doesn't know how to deserialize a JSON string as a char[] . 这里发生的事情是杰克逊不知道如何将JSON字符串反序列化为char[] 。
There is a school of thought that says that you should not use Java strings to hold passwords ... because it supposedly allows a hacker to extract them from (say) non-GC'ed strings in a JVM core dump. 有一种思想流派认为你不应该使用Java字符串来保存密码...因为它应该允许黑客从JVM核心转储中的（例如）非GC字符串中提取它们。 But the reality is that if a hacker can extract passwords that way, they can most likely do other things to get the password. 但实际情况是，如果黑客能够以这种方式提取密码，他们很可能会做其他事情来获取密码。 Besides, the very same passwords will most likely be in String objects created internally by Glassfish framework classes and/or the JSON deserializer. 此外，完全相同的密码很可能是由Glassfish框架类和/或JSON反序列化器在内部创建的String对象中。 Using a char[] in this case is most likely futile. 在这种情况下使用char[]很可能是徒劳的。 Even if you address those concerns, using char[] to represent passwords will only be more secure if you overwrite the content of the char[] as soon as possible. 即使您解决了这些问题，如果您尽快覆盖char[]的内容，使用char[]表示密码也会更安全。 If you let the char[] become unreachable while it still holds a password, you are back to the String problem. 如果让char[]在仍然保存密码时变得无法访问，则会回到String问题。
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