报错:

2023-09-08 15:42:59.043  WARN 27164 [io-8080-exec-14] i.s.m.p.AbstractSerializableParameter    [421] : Illegal DefaultValue null for parameter type integer

java.lang.NumberFormatException: For input string: ""
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
	at java.lang.Long.parseLong(Long.java:601)
	at java.lang.Long.valueOf(Long.java:803)
	at io.swagger.models.parameters.AbstractSerializableParameter.getExample(AbstractSerializableParameter.java:412)
	at sun.reflect.GeneratedMethodAccessor203.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:688)
	at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:721)

主要报错:

	at io.swagger.models.parameters.AbstractSerializableParameter.getExample(AbstractSerializableParameter.java:412)
	at sun.reflect.GeneratedMethodAccessor203.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)

就是@ApiModelProperty,和@ApiImplicitParam注解的example有空的,但是类型是Long或者Integer类型

作者说这只是一个警告并不是个错误,并且有点烦躁的说已经是提的1000个issues了

https://github.com/springfox/springfox/issues/2568

后面的人给了解决方法:

解决给Integer类型或者long类型的example设置值,不设置也不行(不建议)有时候参数很多,很麻烦.或者不用处理

方法一:修改AbstractSerializableParameter类的日志级别为Error

在logback.xml里面加上

    <logger name="io.swagger.models.parameters.AbstractSerializableParameter" level="ERROR"/>
![image.png](https://s2.51cto.com/images/202309/54bf3b752732eafd3bf4962707b15ce12045b9.png?x-oss-process=image/watermark,size_14,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=)

方法二:修改swagger版本

        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>${springfox.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>io.swagger</groupId>
                    <artifactId>swagger-models</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>io.swagger</groupId>
                    <artifactId>swagger-annotations</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-models</artifactId>
            <version>1.6.0</version>
            <scope>compile</scope>
        </dependency>

        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-annotations</artifactId>
            <version>1.6.0</version>
            <scope>compile</scope>
        </dependency>