SpringBoot 属性配置(二)

布满荆棘的人生 2024-02-18 20:24 53阅读 0赞

application.properties项目配置文件说明:

![20180523163230735][]

打开页面,ALT+/有提示;修改了Tomcat为8888; 上下文路径/hello2; string是配置属性;

![20180523163306203][]

启动浏览页面

![20180523163424929][]

配置属性字段string;

![20180523163444346][]

启动浏览页面

![20180523163507801][]

再配置mysql数据库属性

![20180523163526393][]

controll类

![20180523163615807][]

![2018052316355245][]

如果是多个属性要配置,是太麻烦了,有没有更简单的配置呢?

可以的,ConfigurationProperties配置方式

package com.hlx.hello.properties;
    
    import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.stereotype.Component;
    
    /**
     * Mysql属性配置文件
     * 
     * @author Administrator
     *
     */
    @Component // 组件
    @ConfigurationProperties(prefix = "mysql") // 配置前缀
    public class MysqlProperties {
    	private String driver;
    	private String url;
    	private String userName;
    	private String password;
          ... generate setXXX and getXXX....

这里会有警告,需要引入依赖到pom.xml;单击即可哦!

![20180523163648525][]

Pom.xml文件就会添加这个依赖包哦!

![20180523163640407][]

HelloController类使用这个配置文件

![20180523164304687][]

浏览页面

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[20180523164304687]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/049ab833adac415095e0eda022e46c4a.png