唐耀东
2022-02-07 afb22090c509befbf68e7aaef00f06795d11337d
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package com.ruoyi.demo.controller;
 
import com.baomidou.lock.LockInfo;
import com.baomidou.lock.LockTemplate;
import com.baomidou.lock.annotation.Lock4j;
import com.baomidou.lock.executor.RedissonLockExecutor;
import com.ruoyi.common.core.domain.AjaxResult;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
 
import java.time.LocalTime;
 
 
/**
 * 测试分布式锁的样例
 *
 * @author shenxinquan
 */
@Api(value = "测试分布式锁的样例", tags = {"测试分布式锁的样例"})
@Slf4j
@RestController
@RequestMapping("/demo/redisLock")
public class RedisLockController {
 
    @Autowired
    private LockTemplate lockTemplate;
 
    /**
     * 测试lock4j 注解
     */
    @ApiOperation("测试lock4j 注解")
    @Lock4j(keys = {"#key"})
    @GetMapping("/testLock4j")
    public AjaxResult<String> testLock4j(String key, String value) {
        System.out.println("start:" + key + ",time:" + LocalTime.now().toString());
        try {
            Thread.sleep(10000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("end :" + key + ",time:" + LocalTime.now().toString());
        return AjaxResult.success("操作成功", value);
    }
 
    /**
     * 测试lock4j 工具
     */
    @ApiOperation("测试lock4j 工具")
    @GetMapping("/testLock4jLockTemaplate")
    public AjaxResult<String> testLock4jLockTemaplate(String key, String value) {
        final LockInfo lockInfo = lockTemplate.lock(key, 30000L, 5000L, RedissonLockExecutor.class);
        if (null == lockInfo) {
            throw new RuntimeException("业务处理中,请稍后再试");
        }
        // 获取锁成功,处理业务
        try {
            try {
                Thread.sleep(8000);
            } catch (InterruptedException e) {
                //
            }
            System.out.println("执行简单方法1 , 当前线程:" + Thread.currentThread().getName());
        } finally {
            //释放锁
            lockTemplate.releaseLock(lockInfo);
        }
        //结束
        return AjaxResult.success("操作成功", value);
    }
 
}