SpringBoot項目集成swagger報NumberFormatException: For input string: ""

java.lang.NumberFormatException: For input string: ""
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) ~[?:1.8.0_242]

出現此錯誤，就是應該導入了多個版本的swagger依賴

<groupId>io.swagger</groupId>
  <artifactId>swagger-annotations</artifactId>

  <groupId>io.swagger</groupId>
  <artifactId>swagger-models</artifactId>

通過IDEA提供的依賴圖查看，項目中存在 1.5.20版本和2.1.2版本，需要排除1.5.20版本的依賴；解決方法如下：替換swagger的依賴包即可

<dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-boot-starter</artifactId>
      <version>3.0.0</version>
      <exclusions>
        <exclusion>
          <artifactId>swagger-models</artifactId>
          <groupId>io.swagger</groupId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger-common</artifactId>
      <version>3.0.0</version>
      <exclusions>
        <exclusion>
          <groupId>io.swagger</groupId>
          <artifactId>swagger-annotations</artifactId>
        </exclusion>
        <exclusion>
          <groupId>io.swagger</groupId>
          <artifactId>swagger-models</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger2</artifactId>
      <version>3.0.0</version>
      <scope>compile</scope>
      <exclusions>
        <exclusion>
          <groupId>io.swagger</groupId>
          <artifactId>swagger-annotations</artifactId>
        </exclusion>
        <exclusion>
          <groupId>io.swagger</groupId>
          <artifactId>swagger-models</artifactId>
        </exclusion>
      </exclusions>
    </dependency>

因爲

springfox-boot-starter:3.0 依賴導入了2個版本，所以只需要把低版本排除即可