Error: Main method not found in class

Posted 2023-05-24 1420_wafer

###执行java报错,没有发现主方法###
[root@localhost qf]# java Qf
Error: Main method not found in class Qf, please define the main method as:
public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application

###这里"main"拼错了,修改为"main"###
[root@localhost qf]# cat Qf.java
public class Qf
public static void man (String[] args)
System.out.println("Hello");

###重新编译并执行###
[root@localhost qf]# javac Qf.java
[root@localhost qf]# java Qf
Hello

oauth2(spring security)报错method_not_allowed(Request method 'GET' not supported)解决方法

报错信息

<MethodNotAllowed>
<error>method_not_allowed</error>
<error_description>Request method &#39;GET&#39; not supported</error_description>
</MethodNotAllowed>

39是单引号

原因

默认只支持post

解决方法

1. 下载安装postman工具（或其他post工具）
   使用post调用
   

2. 代码增加get的方法

@Configuration
public class OAuthSecurityConfig extends AuthorizationServerConfigurerAdapter {
...
    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        ...
        endpoints.allowedTokenEndpointRequestMethods(HttpMethod.GET, HttpMethod.POST);// add get method
        ...

        endpoints.tokenServices(tokenServices);
    }
...
}

参考资料

stackoverflow
csdn blog