018_异步_Schedule

类似于Windows Schedule Job;

有两种方式的用法：

直接上代码：

①：

public class AccountSchedula implements Schedulable {
    public void execute(SchedulableContext sc) {
        System.debug('ceshi schedula');
      
    }
}

测试：@isTest
public class TestAccountSchedule {
static testMethod void myUnitTest() {
        String executeTime = '0 0 16 * * ?';
        AccountSchedula goodsSchedule = new AccountSchedula();
        System.schedule('batch goods',executeTime,goodsSchedule);
    }
}

直接run test 便可以看到Log 上的debug信息

　　②：

global class dldcApprovalofTimecardScheduled implements Schedulable {
    global static void execute(SchedulableContext sc) {
        dldc_Timecard_Approval_Reminder.Approval();
    }
}



global class dldc_Timecard_Approval_Reminder{


    global static void Approval() {
    }
}

　　在Apex class 中找到dldcApprovalofTimecardScheduled  并且点击schedula ,在页面上上就可以设置执行的时间，不过都是半点或者是整点，看个人喜好选择这两种方式

 

global class GoodSchedule implements
    Database.Batchable<sObject>, Database.Stateful {
     
    // instance member to retain state across transactions
    global Integer recordsProcessed = 0;
 
    global Database.QueryLocator start(Database.BatchableContext bc) {
        return Database.getQueryLocator(
            'SELECT ID,GoodsDescribe__c, GoodsBrand__c, GoodsName__c  FROM Goods__c WHERE GoodsName__c like \'%小米%\''
        );
    }
    

    global void execute(Database.BatchableContext bc, List<Goods__c> goods){
        
        for(Goods__c god : goods){
            god.GoodsDescribe__c = 'Nice2';
    }
        
        Database.upsert(goods,false);
 
       
    }   
 
    global void finish(Database.BatchableContext bc){
        System.debug(recordsProcessed + ' records processed. Shazam!');
        AsyncApexJob job = [SELECT Id, Status, NumberOfErrors,
            JobItemsProcessed,
            TotalJobItems, CreatedBy.Email
            FROM AsyncApexJob
            WHERE Id = :bc.getJobId()];
        // call some utility to send email
       // EmailUtils.sendMessage(a, recordsProcessed);
    }   
        
     public void sendEmail(String Msg){
        // Send Email to Admin
        Messaging.SingleEmailMessage message = new Messaging.SingleEmailMessage();
        message.setToAddresses(new String[] { '##.com' });
        message.setSubject('Group Upsert');
        message.sethtmlBody('Error:'+Msg);
        Messaging.sendEmail(new Messaging.Email[] {message});
    }
 
}

　　手动执行代码：

GoodSchedule sa = new GoodSchedule();
Id batchId = Database.executeBatch(sa);