人人网框架导入uidGenerator的ID生成方式

<!--必须放在最后-->

        <dependency>

            <groupId>cn.codesheep</groupId>

            <artifactId>uid-generator</artifactId>

            <version>1.0</version>

        </dependency>

/**

 * @author lr

 * @date 2019年3月8日 下午4:03:15

 * @version V1.0.0

 */

package io.renren.config;

import com.baidu.fsg.uid.impl.CachedUidGenerator;

import io.renren.service.DisposableWorkerIdAssigner;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

/**

 * https://github.com/baidu/uid-generator/blob/master/README.zh_cn.md

 * 百度id生成器

 * 两种生成器: DefaultUidGenerator、CachedUidGenerator。如对UID生成性能有要求, 请使用CachedUidGenerator

 * 对应Spring配置分别为: default-uid-spring.xml、cached-uid-spring.xml

 */

@Configuration

public class CachedUidGeneratorConfig {

    /**

     * 用完即弃的WorkerIdAssigner, 依赖DB操作

     * @return

     */

    @Bean

    public DisposableWorkerIdAssigner disposableWorkerIdAssigner(){

        return new DisposableWorkerIdAssigner();

    }

    @Bean

    public CachedUidGenerator cachedUidGenerator(DisposableWorkerIdAssigner disposableWorkerIdAssigner){

        CachedUidGenerator cachedUidGenerator = new CachedUidGenerator();

        cachedUidGenerator.setWorkerIdAssigner(disposableWorkerIdAssigner);

        //以下为可选配置, 如未指定将采用默认值

        cachedUidGenerator.setTimeBits(29);

        cachedUidGenerator.setWorkerBits(21);

        cachedUidGenerator.setSeqBits(13);

        cachedUidGenerator.setEpochStr("2016-09-20");

        //RingBuffer size扩容参数, 可提高UID生成的吞吐量

        //默认:3， 原bufferSize=8192, 扩容后bufferSize= 8192 << 3 = 65536

        cachedUidGenerator.setBoostPower(3);

        // 指定何时向RingBuffer中填充UID, 取值为百分比(0, 100), 默认为50

        // 举例: bufferSize=1024, paddingFactor=50 -> threshold=1024 * 50 / 100 = 512.

        // 当环上可用UID数量 < 512时, 将自动对RingBuffer进行填充补全

        //<property name="paddingFactor" value="50"></property>

        //另外一种RingBuffer填充时机, 在Schedule线程中, 周期性检查填充

        //默认:不配置此项, 即不实用Schedule线程. 如需使用, 请指定Schedule线程时间间隔, 单位:秒

        cachedUidGenerator.setScheduleInterval(60L);

        //拒绝策略: 当环已满, 无法继续填充时

        //默认无需指定, 将丢弃Put操作, 仅日志记录. 如有特殊需求, 请实现RejectedPutBufferHandler接口(支持Lambda表达式)

        //<property name="rejectedPutBufferHandler" ref="XxxxYourPutRejectPolicy"></property>

        //cachedUidGenerator.setRejectedPutBufferHandler();

        //拒绝策略: 当环已空, 无法继续获取时 -->

        //默认无需指定, 将记录日志, 并抛出UidGenerateException异常. 如有特殊需求, 请实现RejectedTakeBufferHandler接口(支持Lambda表达式) -->

        //<property name="rejectedTakeBufferHandler" ref="XxxxYourTakeRejectPolicy"></property>

        return cachedUidGenerator;

    }

}

/*

 * Copyright (c) 2017 Baidu, Inc. All Rights Reserve.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package io.renren.dao;

import org.apache.ibatis.annotations.Mapper;

import org.apache.ibatis.annotations.Param;

import com.baidu.fsg.uid.worker.entity.WorkerNodeEntity;

/**

 * DAO for M_WORKER_NODE

 *

 * @author yutianbao

 */

@Mapper

public interface WorkerNodeDao {

    /**

     * Get {@link WorkerNodeEntity} by node host

     *

     * @param host

     * @param port

     * @return

     */

    WorkerNodeEntity getWorkerNodeByHostPort(@Param("host") String host, @Param("port") String port);

    /**

     * Add {@link WorkerNodeEntity}

     *

     * @param workerNodeEntity

     */

    void addWorkerNode(WorkerNodeEntity workerNodeEntity);

}

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="io.renren.dao.WorkerNodeDao">

	<resultMap id="workerNodeRes"

			   type="com.baidu.fsg.uid.worker.entity.WorkerNodeEntity">

		<id column="ID" jdbcType="BIGINT" property="id" />

		<result column="HOST_NAME" jdbcType="VARCHAR" property="hostName" />

		<result column="PORT" jdbcType="VARCHAR" property="port" />

		<result column="TYPE" jdbcType="INTEGER" property="type" />

		<result column="LAUNCH_DATE" jdbcType="DATE" property="launchDate" />

		<result column="MODIFIED" jdbcType="TIMESTAMP" property="modified" />

		<result column="CREATED" jdbcType="TIMESTAMP" property="created" />

	</resultMap>

	<insert id="addWorkerNode" useGeneratedKeys="true" keyProperty="id"

		parameterType="com.baidu.fsg.uid.worker.entity.WorkerNodeEntity">

		INSERT INTO WORKER_NODE

		(HOST_NAME,

		PORT,

		TYPE,

		LAUNCH_DATE,

		MODIFIED,

		CREATED)

		VALUES (

		#{hostName},

		#{port},

		#{type},

		#{launchDate},

		NOW(),

		NOW())

	</insert>

	<select id="getWorkerNodeByHostPort" resultMap="workerNodeRes">

		SELECT

		ID,

		HOST_NAME,

		PORT,

		TYPE,

		LAUNCH_DATE,

		MODIFIED,

		CREATED

		FROM

		WORKER_NODE

		WHERE

		HOST_NAME = #{host} AND PORT = #{port}

	</select>

</mapper>

/**

 * Copyright (c) 2016-2019 人人开源 All rights reserved.

 *

 * https://www.renren.io

 *

 * 版权所有，侵权必究！

 */

package io.renren.controller;

import io.renren.annotation.Login;

import io.renren.annotation.LoginUser;

import io.renren.common.utils.R;

import io.renren.entity.UserEntity;

import io.swagger.annotations.Api;

import io.swagger.annotations.ApiOperation;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RequestAttribute;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

import com.baidu.fsg.uid.UidGenerator;

import springfox.documentation.annotations.ApiIgnore;

/**

 * 测试接口

 *

 * @author Mark sunlightcs@gmail.com

 */

@RestController

@RequestMapping("/api")

@Api(tags="测试接口")

public class ApiTestController {

    @Autowired

    private UidGenerator uidGenerator;

    @Login

    @GetMapping("userInfo")

    @ApiOperation(value="获取用户信息", response=UserEntity.class)

    public R userInfo(@ApiIgnore @LoginUser UserEntity user){

        return R.ok().put("user", user);

    }

    @Login

    @GetMapping("userId")

    @ApiOperation("获取用户ID")

    public R userInfo(@ApiIgnore @RequestAttribute("userId") Integer userId){

        return R.ok().put("userId", userId);

    }

    @GetMapping("notToken")

    @ApiOperation("忽略Token验证测试")

    public R notToken(){

        return R.ok().put("msg", "无需token也能访问。。。");

    }

    @GetMapping("uuid")

    @ApiOperation("百度生成uid")

    public R uidGenerator(){

        return R.ok().put("uid", Long.toString(uidGenerator.getUID()));

    }

}

{"msg":"success","uid":"1340011929288130560","code":0}