在使用IDEA+SpringBoot集成Swagger2时发现SpringBoot启动正常,没有报错,但当使用浏览器防止http://localhost:8080/swagger-ui.html
地址时浏览器提示如下:
Unable to infer base url. This is common when using dynamic servlet registration or when the API is behind an API Gateway. The base url is the root of where all the swagger resources are served. For e.g. if the api is available at http://example.org/api/v2/api-docs then the base url is http://example.org/api/. Please enter the location manually:http://localhost:8080/swagger-ui.html
然后发现IDEA控制台也会不停的报错如下:
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.annotation.JsonIncludeProperties
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_202]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_202]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_202]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_202]
… 61 common frames omitted
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_202]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_202]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_202]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_202]
… 61 common frames omitted
从报错情况可以看出是因为少jackson的相关jar包导致的(而缺少的原因也可能是SpringBoot版本和Swagger版本不匹配原因导致的,不过在此我们暂不考虑)。
解决办法:
在
pom.xml
导入jackson相关的依赖,具体如下:
<dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.11.2</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.11.2</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.11.2</version> </dependency>
这里我使用2.11.2
版本是因为SpringBoot好像也内置了相关的jar,低版本好像会有冲突。导入成功后我们重启SpringBoot再次访问,发现成功了: