ConfigurationProperties注解读取方式是什么？

@ConfigurationProperties方式

自定义配置类：PropertiesConfig.java

package com.zyd.property.config;

import java.io.UnsupportedEncodingException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map;

import org.springframework.boot.context.properties.ConfigurationProperties; //import org.springframework.context.annotation.PropertySource; import org.springframework.stereotype.Component;

/** * 对应上方配置文件中的第一段配置 * @author yadong.zhang * @date 2017年6月1日 下午4:34:18 * @version V1.0 * @since JDK ： 1.7 */ @Component @ConfigurationProperties(prefix = "com.zyd") // PropertySource默认取application.properties // @PropertySource(value = "config.properties") public class PropertiesConfig {

public String type3;
public String title3;
public Map<String, String> login = new HashMap<String, String>();
public List<String> urls = new ArrayList<>();

public String getType3() {
    return type3;
}

public void setType3(String type3) {
    this.type3 = type3;
}

public String getTitle3() {
    try {
        return new String(title3.getBytes("ISO-8859-1"), "UTF-8");
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }
    return title3;
}

public void setTitle3(String title3) {
    this.title3 = title3;
}

public Map<String, String> getLogin() {
    return login;
}

public void setLogin(Map<String, String> login) {
    this.login = login;
}

public List<String> getUrls() {
    return urls;
}

public void setUrls(List<String> urls) {
    this.urls = urls;
}

} 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 程序启动类：Applaction.java

package com.zyd.property;

import java.io.UnsupportedEncodingException; import java.util.HashMap; import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController;

import com.zyd.property.config.PropertiesConfig;

/** * @author yadong.zhang * @date 2017年6月1日 下午3:49:30 * @version V1.0 * @since JDK ： 1.7 */ @SpringBootApplication @RestController public class Applaction {

@Autowired
private PropertiesConfig propertiesConfig;

/**
 * 
 * 第一种方式：使用`@ConfigurationProperties`注解将配置文件属性注入到配置对象类中
 * 
 * @author zyd
 * @throws UnsupportedEncodingException
 * @since JDK 1.7
 */
@RequestMapping("/config")
public Map<String, Object> configurationProperties() {
    Map<String, Object> map = new HashMap<String, Object>();
    map.put("type", propertiesConfig.getType3());
    map.put("title", propertiesConfig.getTitle3());
    map.put("login", propertiesConfig.getLogin());
    map.put("urls", propertiesConfig.getUrls());
    return map;
}

public static void main(String[] args) throws Exception {
    SpringApplication application = new SpringApplication(Applaction.class);
    application.run(args);
}

} 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 访问结果：

{"title":"使用@ConfigurationProperties获取配置文件","urls":["http://ztool.cc","http://ztool.cc/format/js","http://ztool.cc/str2image","http://ztool.cc/json2Entity","http://ztool.cc/ua"],"login":{"username":"zhangdeshuai","callback":"http://www.flyat.cc","password":"zhenshuai"},"type":"Springboot - @ConfigurationProperties"}