SpringBoot2.2+commons-pool2实现多Ftp连接池完整项目，开箱即用，经过长期生产使用稳定可靠

1、概述

在我们实际生产项目中，不管是上传和下载都需要先连接上Ftp，然后再执行相应的操作。假如可以在执行上传和下载的时候直接拿到Ftp客户端，是不是就节省了很多性能呢？本篇文章就像数据库连接池一样，通过Springboot+commons-pool2实现了ftp连接池，并且可以配置多个ftp的连接池，下面我们就来看下。

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2、项目整体结构

3、项目代码

• 项目jar包依赖

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.10.RELEASE</version>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <maven.version>3.5.0</maven.version>
        <maven.compiler.target>1.8</maven.compiler.target>
        <maven.compiler.source>1.8</maven.compiler.source>
        <java.version>1.8</java.version>
        <maven-source-plugin.version>3.0.1</maven-source-plugin.version>
        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
        <maven-enforcer-plugin.version>3.0.0-M1</maven-enforcer-plugin.version>
        <maven-javadoc-plugin.version>3.0.1</maven-javadoc-plugin.version>
        <maven-release-plugin.version>2.5.3</maven-release-plugin.version>
        <docker-maven-plugin.version>0.4.14</docker-maven-plugin.version>
        <jacoco-maven-plugin.version>0.7.9</jacoco-maven-plugin.version>
        <spring-boot.version>2.2.10.RELEASE</spring-boot.version>
        <spring-cloud.version>Hoxton.SR8</spring-cloud.version>
        <spring-cloud-alibaba.version>2.2.5.RELEASE</spring-cloud-alibaba.version>
        <commons-lang3.version>3.5</commons-lang3.version>
        <fastjson.version>1.2.60</fastjson.version>
        <lombok.version>1.18.8</lombok.version>
        <logback.version>1.2.3</logback.version>
        <guava.version>23.0</guava.version>
        <hutool.version>5.3.10</hutool.version>
        <commons-net.version>3.6</commons-net.version>
        <commons-pool2.version>2.7.0</commons-pool2.version>
        <tika.version>1.22</tika.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!--spring cloud alibaba-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring-cloud-alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>            
            <!--json格式化-->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>${fastjson.version}</version>
            </dependency>

            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
            </dependency>
            <dependency>
                <groupId>org.mapstruct</groupId>
                <artifactId>mapstruct-jdk8</artifactId>
                <version>${mapstruct.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${commons-lang3.version}</version>
            </dependency>
            <!--google 工具类-->
            <dependency>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
                <version>${guava.version}</version>
            </dependency>
            <!--hutool工具类-->
            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
                <version>${hutool.version}</version>
            </dependency>
            <!--hutool工具类-->
            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
                <version>${hutool.version}</version>
            </dependency>
            <dependency>
                <groupId>commons-net</groupId>
                <artifactId>commons-net</artifactId>
                <version>${commons-net.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-pool2</artifactId>
                <version>${commons-pool2.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <!--json格式化-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
        </dependency>
        <!--ftp 依赖-->
        <dependency>
            <groupId>commons-net</groupId>
            <artifactId>commons-net</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
        </dependency>
        <!--spring-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-rest</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <!--junit-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <!--文件类型检测-->
        <dependency>
            <groupId>org.apache.tika</groupId>
            <artifactId>tika-core</artifactId>
            <version>${tika.version}</version>
        </dependency>
    </dependencies>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-deploy-plugin</artifactId>
                <!--deploy 时忽略-->
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>
        </plugins>
    </build>

• 项目properties

package com.faea.properties;


import lombok.Getter;
import lombok.Setter;

/**
 * 单Ftp 属性配置
 *
 * @author liuchao
 * @date 2020-03-28
 */
@Getter
@Setter
public class FtpProperties {

    /**
     * Ip
     */
    private String host;

    /**
     * 端口
     */
    private Integer port;

    /**
     * 登录账号
     */
    private String name;

    /**
     * 登录密码
     */
    private String password;

    /**
     * 访问前缀
     */
    private String urlPrefix;
    /**
     * 是否被动模式
     */
    private boolean passiveMode = false;
    /**
     * 编码格式
     */
    private String encoding = "UTF-8";
    /**
     * 连接超时时间
     */
    private int connectTimeout = 30000;
    /**
     * 缓存
     */
    private int bufferSize = 8096;

    /**
     * 初始化连接池个数
     */
    private int initPoolSize = 4;

    /**
     * 最大连接池个数
     */
    private int maxPoolSize = 15;
}

package com.faea.properties;

import lombok.Getter;
import lombok.Setter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.NestedConfigurationProperty;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * 多Ftp配置兼容
 *
 * @author liuchao
 * @date 2020-03-28
 */
@Getter
@Setter
@ConfigurationProperties(prefix = MultiFtpProperties.PREFIX, ignoreUnknownFields = false)
public class MultiFtpProperties {
    public static final String PREFIX = "faea.ftp-multi";


    @NestedConfigurationProperty
    private Map<String, FtpProperties> map = new LinkedHashMap<>();
}

• 配置多Ftp yml配置

faea:
  ftp-multi:
    map:
      master:
        host: 192.168.13.77
        port: 21
        name: test
        password: test_123
      other-ftp:
        host: 192.168.13.78
        port: 21
        name: test
        password: test_1112     

4、通过端点，查看当前各个连接池的使用情况

通过守护线程实现连接池内连接可用性校验，配置最大、最小连接个数防止Ftp连接数打满，经过长期生产项目实战，稳定可靠，现在分享给有需要的朋友，希望能帮到各位朋友，在使用期间有疑问，欢迎留言分享。

5、如果需要，请访问连接下载：

SpringBoot2.2+commons-pool2实现多Ftp连接池完整项目，开箱即用，经过长期生产使用稳定可靠-Java文档类资源-CSDN下载使用JDK1.8、SpringBoot2.2.10.RELEASE、lombok1.18.8、gua更多下载资源、学习资料请访问CSDN下载频道.https://download.csdn.net/download/u011837804/85074791