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很多朋友在升级Springfox-Swagger到2.9.2版本后会碰见NumberFormatException异常java.lang.NumberFormatException: For input string: ""

异常信息如下：

1. java.lang.NumberFormatException: For input string: ""
2. at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) ~[na:1.8.0_111]
3. at java.lang.Long.parseLong(Long.java:601) ~[na:1.8.0_111]
4. at java.lang.Long.valueOf(Long.java:803) ~[na:1.8.0_111]
5. at
6. //more....

解决办法是在pom.xml中排除Springfox-Swagger的Swagger-Models的jar包,重新引入，如下：

1. <!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger2 -->
2. <dependency>
3. <groupId>io.springfox</groupId>
4. <artifactId>springfox-swagger2</artifactId>
5. <version>2.9.2</version>
6. <exclusions>
7. <exclusion>
8. <groupId>io.swagger</groupId>
9. <artifactId>swagger-models</artifactId>
10. </exclusion>
11. </exclusions>
12. </dependency>
13.  
14. <!-- https://mvnrepository.com/artifact/io.swagger/swagger-models -->
15. <dependency>
16. <groupId>io.swagger</groupId>
17. <artifactId>swagger-models</artifactId>
18. <version>1.5.21</version>
19. </dependency>

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