SpringBoot获取配置：@Value、@ConfigurationProperties方式
配置文件yml# phantomjs的位置地址
phantomjs:
binPath:
windows: binPath-win
linux: binPath-linux
jsPath:
windows: jsPath-win
linux: jsPath-linux
imagePath:
windows: imagePath-win
linux: imagePath-linux
phantomjs2:
binPath2: I‘m binPath2
binPath3: I‘m binPath3一、@Value
1、常规方式
[*]注入（需要把类交给spring）
@Data
@Component
public class PhantomPath {
@Value("${phantomjs.binPath.windows}")
private String binPathWin;
@Value("${phantomjs.jsPath.windows}")
private String jsPathWin;
@Value("${phantomjs.binPath.linux}")
private String binPathLinux;
@Value("${phantomjs.jsPath.linux}")
private String jsPathLinux;
@Value("${phantomjs.imagePath.windows}")
private String imagePathWin;
@Value("${phantomjs.imagePath.linux}")
private String imagePathLinux;
//下面可以直接在方法中使用
}
[*]使用(可以直接在注入的类中使用)
@Resource
private PhantomPath phantomPath;
@Test
public void test03()throws Exception{
System.out.println(phantomPath.getBinPathWin());
System.out.println(phantomPath.getJsPathWin());
System.out.println(phantomPath.getBinPathLinux());
System.out.println(phantomPath.getJsPathLinux());
System.out.println(phantomPath.getImagePathWin());
System.out.println(phantomPath.getImagePathLinux());
}
[*]测试
https://img2023.cnblogs.com/blog/1848807/202311/1848807-20231107101502207-1973555770.png
2、注入到静态属性上
[*]解释
不能这样直接注入到静态属性上
https://img2023.cnblogs.com/blog/1848807/202311/1848807-20231107101847558-593051542.png
这样是获取不到值的
https://img2023.cnblogs.com/blog/1848807/202311/1848807-20231107102130410-172585505.png
[*]注入（需要注入到非静态set方法上，再复制给静态属性）
package com.cc.urlgethtml.utils;
import lombok.Data;
import lombok.Getter;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
/**
* <p>根据不同系统获取不同路径</p>
*
* @author CC
* @since 2023/11/3
*/
@Component
public class PhantomPathStatic {
public static String binPathWin;
public static String jsPathWin;
//必须是非静态的set方法
@Value("${phantomjs.binPath.windows}")
public void setBinPathWin(String binPathWin) {
PhantomPathStatic.binPathWin = binPathWin;
}
@Value("${phantomjs.jsPath.windows}")
public void setJsPathWin( String jsPathWin) {
PhantomPathStatic.jsPathWin = jsPathWin;
}
public static String getBinPathWin() {
return binPathWin;
}
public static String getJsPathWin() {
return jsPathWin;
}
}
[*]使用(有两种方式：静态属性方式、get方式)
@Resource
private PhantomPathStatic phantomPathStatic;
@Test
public void test04()throws Exception{
System.out.println(phantomPathStatic.getBinPathWin());
System.out.println(PhantomPathStatic.binPathWin);
System.out.println(phantomPathStatic.getJsPathWin());
System.out.println(PhantomPathStatic.jsPathWin);
}
[*]测试
https://img2023.cnblogs.com/blog/1848807/202311/1848807-20231107103425712-1848629189.png
一、@ConfigurationProperties
1、常规方式
[*]注入
@Data
@Component
@ConfigurationProperties(prefix = "phantomjs2")
public class PhantomConPro {
private String binPath2;
private String binPath3;
}
[*]使用、测试
https://img2023.cnblogs.com/blog/1848807/202311/1848807-20231107110650896-941509700.png
2、获取map方式
[*]注入
package com.cc.urlgethtml.utils;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import java.util.Map;
/**
* <p></p>
*
* @author CC
* @since 2023/11/7
*/
@Data
@Component
@ConfigurationProperties(prefix = "phantomjs")
public class PhantomConProMap {
private Map<String, String> binPath;
private Map<String, String> jsPath;
private Map<String, String> imagePath;
}
[*]使用、测试
https://img2023.cnblogs.com/blog/1848807/202311/1848807-20231107111227327-66567365.png
3、注入到静态属性上
[*]注入
package com.cc.urlgethtml.utils;
import lombok.Data;
import lombok.Getter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import java.util.Map;
/**
* <p></p>
*
* @author CC
* @since 2023/11/7
*/
@Component
@ConfigurationProperties(prefix = "phantomjs")
public class PhantomConProMapStatic {
@Getter
public static Map<String, String> binPath;
@Getter
public static Map<String, String> jsPath;
@Getter
public static Map<String, String> imagePath;
//必须是非静态的set方法
public void setBinPath(Map<String, String> binPath) {
PhantomConProMapStatic.binPath = binPath;
}
public void setJsPath(Map<String, String> jsPath) {
PhantomConProMapStatic.jsPath = jsPath;
}
public void setImagePath(Map<String, String> imagePath) {
PhantomConProMapStatic.imagePath = imagePath;
}
}
[*]使用、测试（三种使用方式）
https://img2023.cnblogs.com/blog/1848807/202311/1848807-20231107112559195-663917960.png
三、总结
参考：https://zhuanlan.zhihu.com/p/639448969
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