（1）准备
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
book:
name: 熊猫酒仙_
- resouces 下新建一个test文件夹，文件夹下一个test.txt文件,文件内容:
Test
（2）代码
@Service
public class OtherService {
@Value("测试其它类的属性")
private String another;
public String getAnother() {
return another;
}
public void setAnother(String another) {
this.another = another;
}
}
@Configuration
public class ElConfig {
/**
* 注入普通字符串
*/
@Value("I Love Java")
private String normal;
/**
* 注入操作系统属性
*/
@Value("#{systemProperties['os.name']}")
private String osName;
/**
* 注入表达式结果
*/
@Value("#{T(java.lang.Math).random()*100 }")
private double random;
/**
* 注入其它Bean的属性(其它Bean的属性需要get set 方法，或者 public)
*/
@Value("#{otherService.another}")
private String fromAnother;
/**
* 注入文件
*/
@Value("classpath:/test/test.txt")
private Resource testFile;
/**
* 注入网址
*/
@Value("http://www.baidu.com")
private Resource testUrl;
/**
* 注入配置文件
*/
@Value("${book.name}")
private String userName;
/**
* 注入配置文件
*/
@Autowired
private Environment environment;
public void getSecret() {
try {
System.out.println(normal);
System.out.println(osName);
System.out.println(random);
System.out.println(fromAnother);
System.out.println(IOUtils.toString(testFile.getInputStream(), "utf-8"));
System.out.println(IOUtils.toString(testUrl.getInputStream(), "utf-8"));
System.out.println(userName);
//注入配置文件
System.out.println(environment.getProperty("book.name"));
} catch (IOException e) {
e.printStackTrace();
}
}
}
（3）测试
@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringbootAopApplicationTests {
@Resource
private ElConfig elConfig;
@Test
public void elConfigTest() {
elConfig.getSecret();
}
}
（4）输出
I Love Java
Windows 10
8.226641172488735
测试其它类的属性
Test
<!DOCTYPE html>
<!--STATUS OK--><html> <head><meta http-equiv=content-type content=text/html;charset=utf-8><meta http-equiv=X-UA-Compatible content=IE=Edge><meta content=always name=referrer><link rel=stylesheet type=text/css href=http://s1.bdstatic.com/r/www/cache/bdorz/baidu.min.css><title>百度一下，你就知道</title></head> <body link=#0000cc> <div id=wrapper> <div id=head> <div class=head_wrapper> <div class=s_form> <div class=s_form_wrapper> <div id=lg> <img hidefocus=true src=//www.baidu.com/img/bd_logo1.png width=270 height=129> </div> <form id=form name=f action=//www.baidu.com/s class=fm> <input type=hidden name=bdorz_come value=1> <input type=hidden name=ie value=utf-8> <input type=hidden name=f value=8> <input type=hidden name=rsv_bp value=1> <input type=hidden name=rsv_idx value=1> <input type=hidden name=tn value=baidu><span class="bg s_ipt_wr"><input id=kw name=wd class=s_ipt value maxlength=255 autocomplete=off autofocus></span><span class="bg s_btn_wr"><input type=submit id=su value=百度一下 class="bg s_btn"></span> </form> </div> </div> <div id=u1> <a href=http://news.baidu.com name=tj_trnews class=mnav>新闻</a> <a href=http://www.hao123.com name=tj_trhao123 class=mnav>hao123</a> <a href=http://map.baidu.com name=tj_trmap class=mnav>地图</a> <a href=http://v.baidu.com name=tj_trvideo class=mnav>视频</a> <a href=http://tieba.baidu.com name=tj_trtieba class=mnav>贴吧</a> <noscript> <a href=http://www.baidu.com/bdorz/login.gif?login&tpl=mn&u=http%3A%2F%2Fwww.baidu.com%2f%3fbdorz_come%3d1 name=tj_login class=lb>登录</a> </noscript> <script>document.write('<a href="http://www.baidu.com/bdorz/login.gif?login&tpl=mn&u='+ encodeURIComponent(window.location.href+ (window.location.search === "" ? "?" : "&")+ "bdorz_come=1")+ '" name="tj_login" class="lb">登录</a>');</script> <a href=//www.baidu.com/more/ name=tj_briicon class=bri style="display: block;">更多产品</a> </div> </div> </div> <div id=ftCon> <div id=ftConw> <p id=lh> <a href=http://home.baidu.com>关于百度</a> <a href=http://ir.baidu.com>About Baidu</a> </p> <p id=cp>©2017 Baidu <a href=http://www.baidu.com/duty/>使用百度前必读</a> <a href=http://jianyi.baidu.com/ class=cp-feedback>意见反馈</a> 京ICP证030173号 <img src=//www.baidu.com/img/gs.gif> </p> </div> </div> </div> </body> </html>
熊猫酒仙_
熊猫酒仙_
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