swagger 2.9.0 2.9.2 2.9x Illegal DefaultValue null for parameter type integer 异常

该异常是由 swagger 引起的

解决方法：忽略原版本的swagger-annotations和swagger-models，添加1.5.21版本的

1 <dependency>
2                <groupId>io.springfox</groupId>
3                <artifactId>springfox-swagger-ui</artifactId>
4                <version>2.9.2</version>
5                <exclusions>
6                    <exclusion>
7                        <groupId>io.swagger</groupId>
8                        <artifactId>swagger-annotations</artifactId>
9                    </exclusion>
10                    <exclusion>
11                        <groupId>io.swagger</groupId>
12                        <artifactId>swagger-models</artifactId>
13                    </exclusion>
14                </exclusions>
15            </dependency>
16            <dependency>
17                <groupId>io.swagger</groupId>
18                <artifactId>swagger-annotations</artifactId>
19                <version>1.5.21</version>
20            </dependency>
21            <dependency>
22                <groupId>io.swagger</groupId>
23                <artifactId>swagger-models</artifactId>
24                <version>1.5.21</version>
25            </dependency>