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继承ApplicationContextAware获取ApplicationContext：

package com.xxxx.xxxx.bean;import org.springframework.beans.BeansException;import org.springframework.context.ApplicationContext;import org.springframework.context.ApplicationContextAware;import org.springframework.context.annotation.Configuration;@Configurationpublic class SpringContextUtil implements ApplicationContextAware {    private static ApplicationContext applicationContext;    @Override    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {        SpringContextUtil.applicationContext = applicationContext;    }    public static Object getBean(String name) throws BeansException{        return applicationContext.getBean(name);    }}

这样创造一个工具类即可获取Spring Boot管理的各种Bean。

比如下面这个Service接口：

实现如下：

Controller如下：

这里获取了tableName后，解析tableName的字符串，然后通过反射直接调用service。

EntityAnalys.java如下：

package com.xxxx.xxxx.utils;import com.xxxx.xxxx.bean.SpringContextUtil;import java.lang.reflect.InvocationTargetException;import java.lang.reflect.Method;public class EntityAnalyse {    public static Object getAllObject(String tableName, String methodName) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {        String tName = tableName + "ServiceImpl";        Class cls = SpringContextUtil.getBean(tName).getClass();        Method m = cls.getDeclaredMethod(methodName);        Object invoke = m.invoke(SpringContextUtil.getBean(tName));        return invoke;    }    public static Object getOneObjectByID(String tableName, String methodName, String id) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {        String tName = tableName + "ServiceImpl";        Class cls = SpringContextUtil.getBean(tName).getClass();        Method m = cls.getDeclaredMethod(methodName, String.class);        Object invoke = m.invoke(SpringContextUtil.getBean(tName), id);        return invoke;    }}

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