如何修复 java.lang.RuntimeException:缺少招摇输入或配置? [英] How to fix java.lang.RuntimeException: missing swagger input or config?

问题描述

I'm trying to generate java code from swagger.json using swagger-codegen-cli.jar but I get this exception:

Exception in thread "main" java.lang.RuntimeException: missing swagger input or config!
        at io.swagger.codegen.DefaultGenerator.generate(DefaultGenerator.java:763)
        at io.swagger.codegen.cmd.Generate.run(Generate.java:299)
        at io.swagger.codegen.SwaggerCodegen.main(SwaggerCodegen.java:35)

The command I'm trying to run is the following:

java -jar swagger-codegen-cli.jar generate -i swagger.json -l java -c java-config.json -o api-client

解决方案

You are using Swagger Codegen 2.x which does not support OpenAPI 3.0.

You need to use Swagger Codegen 3.x instead. You can download the latest 3.x CLI JAR from Maven Central:
https://mvnrepository.com/artifact/io.swagger.codegen.v3/swagger-codegen-cli

Here's a direct link to v. 3.0.20 CLI (the latest version as of the time of writing):
https://repo1.maven.org/maven2/io/swagger/codegen/v3/swagger-codegen-cli/3.0.20/swagger-codegen-cli-3.0.20.jar

Or if you prefer to build the codegen from the source code, version 3 is in the 3.0.0 branch:
https://github.com/swagger-api/swagger-codegen/tree/3.0.0

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