BaseController

package com.example.demo.controller;import com.example.demo.service.BaseService;import com.example.demo.utils.DaoUtils;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.autoconfigure.AutoConfigureOrder;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import java.util.Map;@RestController@RequestMapping("base")public class BaseController {    @PostMapping("select")    public void test1(@RequestBody  Map
     
       t){        DaoUtils.select(t);    }}
     

AbstractParams

package com.example.demo.entity;import java.util.Map;public abstract class AbstractParams {    public abstract 
     
       T convertParams(Map map);}
     

Params1

package com.example.demo.entity;import java.util.Map;public class Params1 extends AbstractParams{    @Override    public Params1 convertParams(Map map) {        System.out.printf("Params1");        return new Params1();    }}

Params2

package com.example.demo.entity;import java.util.Map;public class Params2 extends AbstractParams{    @Override    public Params1 convertParams(Map map) {        System.out.printf("Params2");        return null;    }}

BaseService

package com.example.demo.service;import com.example.demo.entity.AbstractParams;public interface BaseService
     
      {    Object getList(T t);}
     

Service1 Service2

package com.example.demo.service;import com.example.demo.entity.Params1;public interface Service1 extends BaseService
     
      {}
     

package com.example.demo.service;import com.example.demo.entity.Params2;public interface Service2 extends BaseService
     
      {}
     

ServiceImpl

package com.example.demo.service.impl;import com.example.demo.entity.Params1;import com.example.demo.service.Service1;import org.springframework.stereotype.Service;@Servicepublic class BaseServiceImpl implements Service1 {    @Override    public Object getList(Params1 abstractParams) {        System.out.printf("this is BaseServiceImpl.....");        return null;    }}

package com.example.demo.service.impl;import com.example.demo.entity.Params2;import com.example.demo.service.BaseService;import org.springframework.stereotype.Service;@Servicepublic class BaseServiceImpl2 implements BaseService
     
       {    @Override    public Object getList(Params2 abstractParams) {        System.out.printf("this is BaseServiceImpl2.....");        return null;    }}
     

DaoUtils

package com.example.demo.utils;import com.example.demo.entity.AbstractParams;import com.example.demo.service.BaseService;import java.lang.reflect.Method;import java.util.HashMap;import java.util.Map;public class DaoUtils
     
       {    private static Map
      
        serviceMap = null;    private static Map
       
         parametersMap = null;    static{        serviceMap = new HashMap<>();        serviceMap.put("table1","baseServiceImpl");        serviceMap.put("table2","baseServiceImpl2");        parametersMap = new HashMap<>();        parametersMap.put("table1","com.example.demo.entity.Params1");        parametersMap.put("table2","com.example.demo.entity.Params2");    }    public static 
        
           void select(Map
         
           params){        try {            //1.获取实例            String serviceName = serviceMap.get(params.get("tableFlag"));//            Class
           clazz = (Class) Class.forName(serviceName); B serviceBean = (B) SpringUtils.getBean(serviceName); //2.获取方法 Class
 paramsType = getParamsType(params); Method method = serviceBean.getClass().getMethod("getList",paramsType); //3.设置参数 P convertedParams = convertParams(params,paramsType); //执行方法 method.invoke(serviceBean,convertedParams); } catch (Exception e) { e.printStackTrace(); } } private static 
 Class
 getParamsType(Map
             
               params){ try { Class tClass = Class.forName(parametersMap.get(params.get("tableFlag"))); return tClass; } catch (ClassNotFoundException e) { e.printStackTrace(); } return null; } private static 
             
 P convertParams(Map
             
               params, Class
             
 paramsType){ try { P bean = paramsType.newInstance(); P params1 = bean.convertParams(params); return params1; } catch (InstantiationException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } return null; }}
         
        
       
      
     

SpringUtils

package com.example.demo.utils;import org.springframework.beans.BeansException;import org.springframework.context.ApplicationContext;import org.springframework.context.ApplicationContextAware;import org.springframework.stereotype.Component;@Componentpublic class SpringUtils implements ApplicationContextAware {    // Spring应用上下文环境    private static ApplicationContext applicationContext;    @Override    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {        SpringUtils.applicationContext = applicationContext;    }    /**     * @return ApplicationContext     */    public static ApplicationContext getApplicationContext() {        return applicationContext;    }    /**     * 获取对象     *     * @param name     * @return Object     * @throws BeansException     */    public static Object getBean(String name) throws BeansException {        return applicationContext.getBean(name);    }}

 

工程结构