import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.stereotype.Component;

@Component
public class SpringUtils implements BeanFactoryPostProcessor {

    /** Spring應(yīng)用上下文環(huán)境 \*/
    private static ConfigurableListableBeanFactory beanFactory;

    @Override
    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException
    {
        SpringUtils.beanFactory = beanFactory;
    }
    @SuppressWarnings("unchecked")
    public static <T> T getBean(String name) throws BeansException
    {
        return (T) beanFactory.getBean(name);
    }
    public static <T> T getBean(Class<T> clz) throws BeansException
    {
        T result = (T) beanFactory.getBean(clz);
        return result;
    }
}

package com.example.groovy.testgroovy.task;

import groovy.lang.GroovyClassLoader;

public class GroovyUtils {

    private final static ClassLoader classLoader = GroovyUtils.class.getClassLoader();//獲取當(dāng)前類裝載器
    //ClassLoader：就是類的裝載器，它使JVM可以動(dòng)態(tài)的載入Java類，JVM并不需要知道從什么地方（本地文件、網(wǎng)絡(luò)等）載入Java類，這些都由ClassLoader完成。

    public final static GroovyClassLoader groovyClassLoader = new GroovyClassLoader(classLoader);
    //GroovyClassLoader：負(fù)責(zé)在運(yùn)行時(shí)編譯groovy源代碼為Class的工作，從而使Groovy實(shí)現(xiàn)了將groovy源代碼動(dòng)態(tài)加載為Class的功能。

    /**
     * .
     * 獲取實(shí)例化對(duì)象
     * @param script groovy腳本內(nèi)容
     * @param <T>
     * @return
     * @throws IllegalAccessException
     * @throws InstantiationException
     */
    public static <T> T instanceTaskGroovyScript(String script) throws IllegalAccessException, InstantiationException {
        Class taskClz = groovyClassLoader.parseClass(script);
        T instance = (T) taskClz.newInstance();
        return instance;
    }
}

@Slf4j
@Component
public class CallAnalysisGroovyTask {


    /**
     * .
     * 讀取腳本內(nèi)容
     *
     * @return
     */
    public String getGroovy() {
        String context = "";
        try {
            String path = "E:\\IDEAFile\\testgroovy\\src\\main\\resources\\groovy\\LoadBean.groovy";
            context = FileUtils.readFileToString(new File(path));//將腳本內(nèi)容轉(zhuǎn)為字符串
        } catch (IOException e) {
            log.error("file is not found[{}]", e);
        }
        return context;
    }

    /**
     * .
     * 執(zhí)行g(shù)roovy腳本
     *
     * @param script
     */
    public void execGroovy(String script) {
        try {
            Runnable runnable = GroovyUtils.instanceTaskGroovyScript(script);//獲取實(shí)例對(duì)象
            runnable.run();//調(diào)用腳本方法
        } catch (Exception t) {
            log.error("execGroovy file {} error", script);
        }
    }
}

@Slf4j
class LoadBean implements Runnable {

    /**
     * .
     * Groovy獲取Bean
     */
    @Override
    void run() {
        log.info("Groovy開(kāi)始執(zhí)行,當(dāng)前類{}", this.getClass())
        ScriptService service = SpringUtils.getBean(ScriptService.class)
        log.info("ApplicationContext獲取對(duì)象[{}]", service.class)
        List<Script> item = service.findAll()//執(zhí)行bean中數(shù)據(jù)查詢方法
        for (Script s : item) {
            log.info("創(chuàng)建人:[{}],規(guī)則id:[{}],名稱:[{}]", s.getCreatePerson(), s.getRuleId(), s.getScriptName())
        }
        log.info("Groovy結(jié)束執(zhí)行,當(dāng)前類{}", this.getClass())
    }
}

   @GetMapping("/loadBean")
    public void loadBean(){
        String script = CallAnalysisGroovyTask.getGroovy(); //獲取腳本
        CallAnalysisGroovyTask.execGroovy(script);//實(shí)例化腳本，執(zhí)行方法
        log.info("數(shù)據(jù)查詢成功...");
    }

@SpringBootApplication
public class TestgroovyApplication {

    //獲取應(yīng)用程序上下文環(huán)境
    private static ApplicationContext applicationContext;

    public static void main(String[] args) {
        applicationContext = SpringApplication.run(TestgroovyApplication.class, args);
    }

    /**
     * .
     * Groovy獲取Bean
     */
    @Override
    void run() {
        log.info("Groovy開(kāi)始執(zhí)行,當(dāng)前類{}", this.getClass())
        ScriptService service = TestgroovyApplication.applicationContext.getBean(ScriptService.class)
        log.info("ApplicationContext獲取對(duì)象[{}]", service.class)
        List<Script> item = service.findAll()//執(zhí)行bean中數(shù)據(jù)查詢方法
        for (Script s : item) {
            log.info("創(chuàng)建人:[{}],規(guī)則id:[{}],名稱:[{}]", s.getCreatePerson(), s.getRuleId(), s.getScriptName())
        }
        log.info("Groovy結(jié)束執(zhí)行,當(dāng)前類{}", this.getClass())
    }