SpringBoot如何实现调用controller和Service层方法_Java

springboot调用controller和service层方法

说明

最近遇到一个问题,如何在工具类中去访问controller层与service层的方法。
因为平时在调用service层时都是在controller中，有配置扫描注入，spring会根据配置自动注入所依赖的服务层。
但因我们写的工具类不属于controller层，所以当所写接口需要调用服务层是，常常会为null。

实现

1.创建一个工具类：springutil

package com.ruoyi.web.controller.employment.utils;

import org.springframework.beans.beansexception;
import org.springframework.context.applicationcontext;
import org.springframework.context.applicationcontextaware;
import org.springframework.stereotype.component;

@component
public class springutil implements applicationcontextaware{
    private static applicationcontext applicationcontext = null;

    @override
    public void setapplicationcontext(applicationcontext applicationcontext) throws beansexception {
        if(springutil.applicationcontext == null){
            springutil.applicationcontext  = applicationcontext;
        }
    }


    //获取applicationcontext
    public static applicationcontext getapplicationcontext() {
        return applicationcontext;
    }

    //通过name获取 bean.
    public static object getbean(string name){
        return getapplicationcontext().getbean(name);
    }

    //通过class获取bean.
    public static <t> t getbean(class<t> clazz){
        return getapplicationcontext().getbean(clazz);
    }

    //通过name,以及clazz返回指定的bean
    public static <t> t getbean(string name,class<t> clazz){
        return getapplicationcontext().getbean(name, clazz);
    }
}

2.springboot启动类调用controller和service方法

package com.ruoyi;

import com.ruoyi.web.controller.employment.provportcontroller1;
import com.ruoyi.web.controller.employment.provportcontroller2;
import com.ruoyi.web.controller.employment.utils.springutil;
import org.springframework.boot.springapplication;
import org.springframework.boot.autoconfigure.springbootapplication;
import org.springframework.boot.autoconfigure.jdbc.datasourceautoconfiguration;
import org.springframework.context.applicationcontext;

/**
 * 启动程序
 * 
 * @author ruoyi
 */
@springbootapplication(exclude = { datasourceautoconfiguration.class })
public class ruoyiapplication
{
	//注入service
    private static testservice testservice;
    //注入controller
    private static testcontroller testcontroller;

    public static void main(string[] args) throws interruptedexception {
        springapplication.run(ruoyiapplication.class, args);
        applicationcontext context = springutil.getapplicationcontext();
        testservice= context.getbean(testservice.class);
        testcontroller= context.getbean(testcontroller.class);
        //调用service方法
        testservice.getservice(); 
		//调用controller方法
        testcontroller.getcontroller();              
    }
}