@RequestBody 启动报错2.x

[myVictor]

Caused by: java.lang.IllegalStateException: generate swagger operation failed

我看springmvc标签支持表是支持的。

@RequestMapping(value = "/result.action",produces = "application/json")
@responsebody
public ModelMap result(@RequestBody StudentVo studentVo)

这种写法问题在哪，应该怎么写？

[liubao68]

可能是 StudentVo 或者 StudentVo 存在抽象类和接口， 需要看下你的详细错误。 类型支持说明参考， 可以先了解下和 spring boot的差异。

[myVictor]

具体信息：
实体类：
public class StudentVo {

private String name;

private int age;

private Date time;

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public int getAge() {
    return age;
}

public void setAge(int age) {
    this.age = age;
}

public Date getTime() {
    return time;
}

public void setTime(Date time) {
    this.time = time;
}

}

异常信息：
java.lang.IllegalStateException: ServiceComb init failed.
at org.apache.servicecomb.core.SCBEngine.run(SCBEngine.java:331) ~[java-chassis-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.core.CseApplicationListener.onApplicationEvent(CseApplicationListener.java:87) ~[java-chassis-core-2.1.3.jar:2.1.3]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.1.14.RELEASE.jar:5.1.14.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.1.14.RELEASE.jar:5.1.14.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.1.14.RELEASE.jar:5.1.14.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:402) ~[spring-context-5.1.14.RELEASE.jar:5.1.14.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:359) ~[spring-context-5.1.14.RELEASE.jar:5.1.14.RELEASE]
at org.springframework.boot.context.event.EventPublishingRunListener.running(EventPublishingRunListener.java:102) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplicationRunListeners.running(SpringApplicationRunListeners.java:77) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1202) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.example.StudentMan.main(StudentMan.java:18) [classes/:na]
Caused by: java.lang.IllegalStateException: generate swagger operation failed, method=org.example.controller.HelloController:result.
at org.apache.servicecomb.swagger.generator.core.AbstractSwaggerGenerator.scanMethods(AbstractSwaggerGenerator.java:301) ~[swagger-generator-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.generator.core.AbstractSwaggerGenerator.generate(AbstractSwaggerGenerator.java:119) ~[swagger-generator-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.generator.SwaggerGenerator.generate(SwaggerGenerator.java:32) ~[swagger-generator-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.engine.SwaggerEnvironment.checkAndGenerateSwagger(SwaggerEnvironment.java:165) ~[swagger-invocation-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.engine.SwaggerEnvironment.createProducer(SwaggerEnvironment.java:109) ~[swagger-invocation-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.core.provider.producer.ProducerProviderManager.registerSchema(ProducerProviderManager.java:102) ~[java-chassis-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.core.provider.producer.ProducerProviderManager.registerProducerMetas(ProducerProviderManager.java:87) ~[java-chassis-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.core.provider.producer.ProducerProviderManager.init(ProducerProviderManager.java:73) ~[java-chassis-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.core.SCBEngine.doRun(SCBEngine.java:368) ~[java-chassis-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.core.SCBEngine.run(SCBEngine.java:319) ~[java-chassis-core-2.1.3.jar:2.1.3]
... 12 common frames omitted
Caused by: java.lang.IllegalStateException: parameter name is not present, method=org.example.controller.HelloController:result
solution:
change pom.xml, add compiler argument: -parameters, for example:

org.apache.maven.plugins
maven-compiler-plugin

-parameters


at org.apache.servicecomb.swagger.generator.SwaggerGeneratorUtils.collectParameterName(SwaggerGeneratorUtils.java:212) ~[swagger-generator-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.generator.ParameterGenerator.(ParameterGenerator.java:58) ~[swagger-generator-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.generator.ParameterGenerator.(ParameterGenerator.java:70) ~[swagger-generator-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.generator.core.AbstractOperationGenerator.initMethodParameterGenerators(AbstractOperationGenerator.java:234) ~[swagger-generator-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.generator.springmvc.SpringmvcOperationGenerator.initMethodParameterGenerators(SpringmvcOperationGenerator.java:40) ~[swagger-generator-springmvc-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.generator.core.AbstractOperationGenerator.initParameterGenerators(AbstractOperationGenerator.java:215) ~[swagger-generator-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.generator.core.AbstractOperationGenerator.scanMethodParameters(AbstractOperationGenerator.java:195) ~[swagger-generator-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.generator.core.AbstractOperationGenerator.generate(AbstractOperationGenerator.java:155) ~[swagger-generator-core-2.1.3.jar:2.1.3]
at org.apache.servicecomb.swagger.generator.core.AbstractSwaggerGenerator.scanMethods(AbstractSwaggerGenerator.java:297) ~[swagger-generator-core-2.1.3.jar:2.1.3]
... 21 common frames omitted

Process finished with exit code 1

[wujimin]

Caused by: java.lang.IllegalStateException: parameter name is not present, method=org.example.controller.HelloController:result
solution:
change pom.xml, add compiler argument: -parameter

[liubao68]

升级指南 有说明这个问题