spring boot 使用ConfigurationProperties注解将配置文件中的属性值绑定到一个 Java 类中

##############################FTP配置信息###############################
ftp.host=192.168.0.93
ftp.port=21
ftp.username=sap
ftp.password=sap_2023_sap_gao
ftp.initial-size=3
ftp.encoding=UTF-8
ftp.buffer-size=8192
ftp.isopen=true
ftp.retry-count=5
ftp.work-dir=/
ftp.root=/
ftp.max-total=100
ftp.min-idel=2
ftp.max-idle=5
ftp.max-wait-millis=30000
ftp.enter-local-active-mode=false

package com.x2_sap_collect.config;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Component
@ConfigurationProperties(prefix = "ftp")
public class FtpConfig {

    private String host;
    private Integer port;
    private String username;
    private String password;
    private Integer initialSize = 0;
    private String encoding = "UTF-8";
    private Integer bufferSize = 4096;
    private Integer retryCount = 3;
    private String root = "/";
    private String workDir = "/";
    private Integer maxTotal = 100;
    private Integer minIdel = 2;
    private Integer maxIdle = 5;
    private Integer maxWaitMillis = 30000;
    private Boolean enterLocalActiveMode = false;
    private Integer connectTimeoutMillis = 30000;

    public String getHost() {
        return host;
    }

    public void setHost(String host) {
        this.host = host;
    }

    public Integer getPort() {
        return port;
    }

    public void setPort(Integer port) {
        this.port = port;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public Integer getInitialSize() {
        return initialSize;
    }

    public void setInitialSize(Integer initialSize) {
        this.initialSize = initialSize;
    }

    public String getEncoding() {
        return encoding;
    }

    public void setEncoding(String encoding) {
        this.encoding = encoding;
    }

    public Integer getBufferSize() {
        return bufferSize;
    }

    public void setBufferSize(Integer bufferSize) {
        this.bufferSize = bufferSize;
    }

    public Integer getRetryCount() {
        return retryCount;
    }

    public void setRetryCount(Integer retryCount) {
        this.retryCount = retryCount;
    }

    public String getRoot() {
        return root;
    }

    public void setRoot(String root) {
        this.root = root;
    }

    public String getWorkDir() {
        return workDir;
    }

    public void setWorkDir(String workDir) {
        this.workDir = workDir;
    }

    public Integer getMaxTotal() {
        return maxTotal;
    }

    public void setMaxTotal(Integer maxTotal) {
        this.maxTotal = maxTotal;
    }

    public Integer getMinIdel() {
        return minIdel;
    }

    public void setMinIdel(Integer minIdel) {
        this.minIdel = minIdel;
    }

    public Integer getMaxIdle() {
        return maxIdle;
    }

    public void setMaxIdle(Integer maxIdle) {
        this.maxIdle = maxIdle;
    }

    public Integer getMaxWaitMillis() {
        return maxWaitMillis;
    }

    public void setMaxWaitMillis(Integer maxWaitMillis) {
        this.maxWaitMillis = maxWaitMillis;
    }

    public Boolean getEnterLocalActiveMode() {
        return this.enterLocalActiveMode;
    }

    public void setEnterLocalActiveMode(Boolean enterLocalActiveMode) {
        this.enterLocalActiveMode = enterLocalActiveMode;
    }

    public Integer getConnectTimeoutMillis() {
        return connectTimeoutMillis;
    }

    public void setConnectTimeoutMillis(Integer connectTimeoutMillis) {
        this.connectTimeoutMillis = connectTimeoutMillis;
    }
}

package com.x2_sap_collect.task;

import com.x2_sap_collect.config.FtpConfig;
import org.springframework.shell.standard.ShellComponent;
import org.springframework.shell.standard.ShellMethod;

@ShellComponent
public class V1 {

    /**
     * 配置信息
     */
    private final FtpConfig fTpConfig;

    /**
     * 构造函数初始化配置
     * @param fTpConfig
     */
    public V1(FtpConfig fTpConfig) {
        this.fTpConfig = fTpConfig;
    }

    @ShellMethod("Add two integers together.")
    public int add(int a, int b) {
        // 打印配置信息
        System.out.println(fTpConfig.toString());
        return a + b;
    }
}

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-configuration-processor</artifactId>
    <optional>true</optional>
</dependency>