1.执行groovy // 实际执行的话, 我们是通过vue提交的

http://localhost:8080/groovy/execute?script=import com.example.groovytest.controller.LoginController;  LoginController.num=251222

还有个技巧: 而执行执行的，则是: 写的工具什么的，想直接使用, 无需打jar包。

2.查询 // 可以看到，每次执行完groovy脚本，逻辑就修改了

http://localhost:8080/login/getNum

3.GroovyService

package com.example.groovytest.service;

import groovy.lang.GroovyClassLoader;
import groovy.lang.GroovyObject;
import org.springframework.stereotype.Service;

@Service
public class GroovyService {

    public void executeGroovyScript(String script) {
        try{
            GroovyClassLoader loader = new GroovyClassLoader();

            Class<?> groovyClass = loader.parseClass(script);
            GroovyObject groovyObject = (GroovyObject) groovyClass.getDeclaredConstructor().newInstance();
            groovyObject.invokeMethod("run", null);
        }catch (Exception e){
            throw new RuntimeException(e);
        }
    }
}

4.LoginController

package com.example.groovytest.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/login")
public class LoginController {

    public static volatile int num = 111;

    @RequestMapping("/getNum")
    public String getNum() {
        return String.valueOf(num);
    }
}

5.GroovyController.java

package com.example.groovytest.controller;

import com.example.groovytest.service.GroovyService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/groovy")
public class GroovyController {

    @Autowired
    private GroovyService groovyService;

    @RequestMapping("/execute")
    public String execute(String script) {
        try {
            groovyService.executeGroovyScript(script);
        } catch (Exception e) {
            return "fail:" + e.getMessage();
        }
        return "success";
    }
}

总结：

线上的话，我们可以选择都有哪些服务器执行这些逻辑修复，从而快速执行Groovy脚本进行修复即可!!!