Question

我正在尝试使用resteasy与自定义对象，当我创建一个jar文件时它与intellij IDE工作正常，它失败并带有以下异常

org.jboss.resteasy.core.NoMessageBodyWriterFoundFailure: Could not find MessageBodyWriter for response object of type: UserInfo of media type: application/json
at org.jboss.resteasy.core.ServerResponseWriter.writeNomapResponse(ServerResponseWriter.java:67)
at org.jboss.resteasy.core.SynchronousDispatcher.writeResponse(SynchronousDispatcher.java:427)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:376)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179)
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70)
at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

我的资源方法如下：

@POST
@Path("/test")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Response getTest(String userInfos) {
    UserInfo info = new UserInfo();
    info.setUserID("example");
    info.setEnabled(true);
    return  Response.ok().entity(info).build();
}

UserInfo.java：

 public class UserInfo {
        public String userID;
        public Boolean enabled;

        public String getUserID() {
            return userID;
        }

        public void setUserID(String userID) {
            this.userID = userID;
        }

        public Boolean getEnabled() {
            return enabled;
        }

        public void setEnabled(Boolean enabled) {
            this.enabled = enabled;
        }
    }

不确定为什么？

Answer 1

如果您没有包含jackson提供程序，请将其添加到您的pom.xml

<dependency>
    <groupId>org.jboss.resteasy</groupId>
    <artifactId>resteasy-jackson-provider</artifactId>
    <version>3.0.14.Final</version>
</dependency>

Answer 2

根据应用程序的类路径（默认情况下）自动发现邮件正文阅读器，或者可以手动注册。根据您使用的应用程序服务器和部署结构，特定的邮件正文阅读器可能不可用。具有 application / json 功能的常用提供程序是 resteasy-jackson-provider ， resteasy-jettison-provider 。验证类路径中是否至少有其中一个可用。

您还可以检查您是否在web.xml中禁用了提供程序发现？

 <context-param>  
     <param-name>resteasy.use.builtin.providers</param-name>  
     <param-value>true</param-value>  
   </context-param>

如果这没有帮助，您是否可以提供有关如何打包应用程序，在何处部署应用程序以及一些相关配置文件的更多详细信息？

NoMessageBodyWriterFoundFailure resteasy

2 个答案: