通过配置后反射执行指定方法

╰+攻爆jí腚メ 2022-04-23 03:52 195阅读 0赞

public Object executionMethod(String className, String methodName, Object... args){
      	
          try {
              Class<?> clazz =  wac.getBean(className).getClass(); 
              Class[] classes = null;
              if (args != null && args.length != 0){
                  List<Object> parameters = Arrays.asList(args);
                  classes = new Class[parameters.size()];
                  for (int i = 0; i < parameters.size(); i++) {
                      classes[i] = parameters.get(i).getClass();
                  }
              }
              Method method = clazz.getMethod(methodName, classes);
              Object reObject=method.invoke(wac.getBean(className), args);
              return reObject;
          } catch (Exception e) {
              e.printStackTrace();
              logger.info("ExecutionTask.executionMethod:出错了...");
              return "error";
          }
      }

#### 测试文件： ####

/**
     * com.epf.oa.utills
     *
     *   ver     date      		author
     * ──────────────────────────────────
     *   		 2019年1月6日 		GZEPF
     *
     * Copyright (c) 2019, gomai.
    */
    
    package com.epf.oa.utills;
    
    import java.lang.reflect.Method;
    import java.util.ArrayList;
    import java.util.Arrays;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    import org.springframework.web.context.WebApplicationContext;
    
    import com.epf.oa.entity.business.BaseBusinessEntity;
    import com.epf.oa.entity.form.ExcutionEntity;
    import com.epf.oa.entity.form.TaskEventEntity;
    import com.epf.oa.service.TaskEventService;
    import com.github.pagehelper.StringUtil;
    
    /**
     * 
     * <code>ExecutionTask</code> TODO (描述该类做什么)
     * @author   GZEPF
     * @version  V1.0
     * @date	 2019 2019年1月13日 下午4:32:18
     */
    @Component
    public class ExecutionTask {
    	
    	@Autowired
    	private TaskEventService taskEventService;
    	@Autowired
    	WebApplicationContext wac;
     
        protected final Logger logger = LoggerFactory.getLogger(this.getClass());
     
        /**
         * @param obj           一定要传一个已初始化对象（因为方法invoke的时候用此对象调用）
         * @param methodName    方法名
         * @param args          方法参数
         */
        public Object executionMethod(String className, String methodName, Object... args){
        	
            try {
                Class<?> clazz =  wac.getBean(className).getClass(); 
                Class[] classes = null;
                if (args != null && args.length != 0){
                    List<Object> parameters = Arrays.asList(args);
                    classes = new Class[parameters.size()];
                    for (int i = 0; i < parameters.size(); i++) {
                        classes[i] = parameters.get(i).getClass();
                    }
                }
                Method method = clazz.getMethod(methodName, classes);
                Object reObject=method.invoke(wac.getBean(className), args);
                return reObject;
            } catch (Exception e) {
                e.printStackTrace();
                logger.info("ExecutionTask.executionMethod:出错了...");
                return "error";
            }
        }
        
        
        /**
         * 执行TaskNodeConfig理的配置
         * @return 
         * @date 2019年1月18日 上午10:30:01
         */
        public void executionTaskNodeConfig(BaseBusinessEntity businesses){
        	String  taskEvent =businesses.getTaskNode().getTaskEvent();
        	if(StringUtil.isNotEmpty(taskEvent)){
        		List<ExcutionEntity> methods= new ArrayList<>();
        		String[]  taskEvents =taskEvent.split(",");
        		for(int i=0;i<taskEvents.length;i++){
        			TaskEventEntity taskEventEntity=  taskEventService.getTaskEventByCode(taskEvents[i]);
        			if(taskEventEntity!=null){
        				//执行参数列表
        				Map<String, Object >params= new HashMap<>();
        				params.put("businesses", businesses);
        				methods.add(new ExcutionEntity(taskEventEntity.getClassPath(), taskEventEntity.getMethod(),params));
        			}
        		}
        		methods.forEach(excutionEntity->{
        			executionMethod(excutionEntity.getClazz(), excutionEntity.getMethod(),excutionEntity.getParams());
        		});
        		
        	}
        }
        
        
        
        public static void main(String[] args) {
    		ExecutionTask executionTask = new ExecutionTask();
    		//执行方法列表
    		List<ExcutionEntity> methods= new ArrayList<>();
    		//执行参数列表
    		Map<String, Object >params= new HashMap<>();
    		params.put("flowType", "urge");
    		params.put("phone", "13985138082");
    		params.put("msg", "短信内容");
    		methods.add(new ExcutionEntity("com.epf.oa.utills.ExecutionTask", "getName",params));
    		
    		Map<String, Object >params2= new HashMap<>();
    		//执行参数列表
    		params2.put("flowType", "urge-other");
    		params2.put("phone", "13985138082-other");
    		params2.put("msg", "短信内容-other");
    		methods.add(new ExcutionEntity("com.epf.oa.utills.ExecutionTask", "getName2",params2));
    		
    		methods.forEach(excutionEntity->{
    			executionTask.executionMethod(excutionEntity.getClazz(), excutionEntity.getMethod(),excutionEntity.getParams());
    		});
    	}
     
    	
    	public String  getName(HashMap<String, String > params) {
    		System.out.println("********************发送短信**************************");
    		return "";
    	}
    	
    	public String  getName2(HashMap<String, String > params) {
    		System.out.println("********************执行方法**************************");
    		return "";
    	}
    }