前一篇博客实现了打开第一个页面
链接:https://blog.csdn.net/qq_38175040/article/details/105709758
本篇博客实现在框架中注入properties文件中的值
首先在resource下创建一个book.properties文件,如下:
然后创建一个bookbean.java文件,如下,我把代码贴一下:
package com.example.demo;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.PropertySource;
import org.springframework.stereotype.Component;
@Component
@ConfigurationProperties(prefix = "book")
@PropertySource("classpath:book.properties")
public class BookBean {
private String name;
private String author;
private String price;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
public String getPrice() {
return price;
}
public void setPrice(String price) {
this.price = price;
}
}
这里要注意 @ConfigurationProperties的写法
旧版本的写法是:@ConfigurationProperties(prefix = “book”,locations = “classpath:book.properties”)
现在我们这样写:
@ConfigurationProperties(prefix = “book”)
@PropertySource(“classpath:book.properties”)
最后一步
在DemoApplication.java(每个人命名的可能不一样) 中添加如下内容:
@Autowired
private BookBean bookBean;
@RequestMapping("/book")
public String book(){
return "Hello Spring Boot! The BookName is "+bookBean.getName()+";and Book Author is "+bookBean.getAuthor()+";and Book price is "+bookBean.getPrice();
}
好了,现在打开页面看看效果:
更多细节可以参考:https://blog.csdn.net/u012702547/article/details/53740047