springboot使用@ConfigurationProperties封装配置文件

逃离我推掉我的手 2023-06-25 04:58 8阅读 0赞

**业务场景:**  
把配置文件的信息，读取并自动封装成实体类，可以使用@ConfigurationProperties，把同类的配置信息自动封装成实体类。  
1、在pom.xml中添加依赖包

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

2、创建配置文件（application.properties）

wx.appid = wx111111
    wx.redirectUri = https://www.baidu.com/
    wx.templateId = 1
    wx.first = 模板标题
    wx.remark = 模板备注
    wx.color = #000000
    
    sms.appid = 111111
    sms.appkey = bd3bfba026f711eaac3b005056b84de4
    sms.templateId = 1
    sms.sign = Jeff

3、创建测试类1（WxSettings.java）

package com.jeff.config;
    
    import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.stereotype.Component;
    
    @Component
    @ConfigurationProperties(prefix = "wx")
    public class WxSettings { 
    
    	private String appid;
    	private String redirectUri;
    	private Integer templateId;
    	private String first;
    	private String remark;
    	private String color;
    
    	public String getAppid() { 
    		return appid;
    	}
    
    	public void setAppid(String appid) { 
    		this.appid = appid;
    	}
    
    	public String getRedirectUri() { 
    		return redirectUri;
    	}
    
    	public void setRedirectUri(String redirectUri) { 
    		this.redirectUri = redirectUri;
    	}
    
    	public Integer getTemplateId() { 
    		return templateId;
    	}
    
    	public void setTemplateId(Integer templateId) { 
    		this.templateId = templateId;
    	}
    
    	public String getFirst() { 
    		return first;
    	}
    
    	public void setFirst(String first) { 
    		this.first = first;
    	}
    
    	public String getRemark() { 
    		return remark;
    	}
    
    	public void setRemark(String remark) { 
    		this.remark = remark;
    	}
    
    	public String getColor() { 
    		return color;
    	}
    
    	public void setColor(String color) { 
    		this.color = color;
    	}
    
    	@Override
    	public String toString() { 
    		return "WxSettings [appid=" + appid + ", redirectUri=" + redirectUri + ", templateId=" + templateId + ", first="
    				+ first + ", remark=" + remark + ", color=" + color + "]";
    	}
    
    }

4、创建测试类2（SmsSettings.java）

package com.jeff.config;
    
    import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.stereotype.Component;
    
    @Component
    @ConfigurationProperties(prefix = "sms")
    public class SmsSettings { 
    
    	private String appid;
    	private String appkey;
    	private Integer templateId;
    	private String sign;
    
    	public String getAppid() { 
    		return appid;
    	}
    
    	public void setAppid(String appid) { 
    		this.appid = appid;
    	}
    
    	public String getAppkey() { 
    		return appkey;
    	}
    
    	public void setAppkey(String appkey) { 
    		this.appkey = appkey;
    	}
    
    	public Integer getTemplateId() { 
    		return templateId;
    	}
    
    	public void setTemplateId(Integer templateId) { 
    		this.templateId = templateId;
    	}
    
    	public String getSign() { 
    		return sign;
    	}
    
    	public void setSign(String sign) { 
    		this.sign = sign;
    	}
    
    	@Override
    	public String toString() { 
    		return "SmsSettings [appid=" + appid + ", appkey=" + appkey + ", templateId=" + templateId + ", sign=" + sign
    				+ "]";
    	}
    
    }

5、创建测试类（MyController.java）

package com.jeff.controller;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import com.jeff.config.SmsSettings;
    import com.jeff.config.WxSettings;
    
    @RestController
    public class MyController { 
    
    	@Autowired
    	private WxSettings wx;
    	@Autowired
    	private SmsSettings sms;
    
    	@RequestMapping("myTest")
    	public String myTest() { 
    		System.out.println(wx.toString());
    		System.out.println(sms.toString());
    		return "success";
    	}
    
    }

6、打开浏览器访问 **http://localhost:8080/myTest**，控制台输出结果  
![在这里插入图片描述][20191226105831187.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTczOTcyMA_size_16_color_FFFFFF_t_70]

[20191226105831187.png]: https://img-blog.csdnimg.cn/20191226105831187.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTczOTcyMA_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191226105927824.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTczOTcyMA==,size_16,color_FFFFFF,t_70