SpringBoot配置----@PropertySource、@ImportResource、@Bean
作者:互联网
一、@PropertySource
如果想使用项目加载特定的配置文件,可以使用@PropertySource
新建一个项目
DemoApplication.java
package com.zk.demo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } }
Person.java
package com.zk.demo; import org.hibernate.validator.constraints.Email; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.PropertySource; import org.springframework.stereotype.Component; import org.springframework.validation.annotation.Validated; import java.util.List; @Component //@Validated @ConfigurationProperties(prefix = "person") @PropertySource(value = "classpath:person.properties") public class Person { //@Value("${person.last-name}") //@Email private String lastName; private String Sno; private int grade; private List<Object> list; public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } public String getSno() { return Sno; } public void setSno(String sno) { Sno = sno; } public int getGrade() { return grade; } public void setGrade(int grade) { this.grade = grade; } public List<Object> getList() { return list; } public void setList(List<Object> list) { this.list = list; } @Override public String toString() { return "Person{" + "lastName='" + lastName + '\'' + ", Sno='" + Sno + '\'' + ", grade=" + grade + ", list=" + list + '}'; } }
ZkController.java
package com.zk.demo; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.core.env.Environment; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; import java.util.HashMap; import java.util.Map; @RestController public class ZkController { @Autowired private Environment environment; @Value("${server.port}") private Integer port; @Value("${alipay.pay.appid}") private String appid; @Value("${alipay.pay.notify}") private String notify; @Value("${java.version}") private String javaVersion; @Value("${JAVA_HOME}") private String javaHome; @Value("${MAVEN_HOME}") private String mavenHome; @Value("#{11*2}") private Integer number; @GetMapping("/read/file") public Map<String, Object> readInfo1() { Map<String, Object> map = new HashMap<>(); map.put("port", environment.getProperty("server.port")); map.put("appid", environment.getProperty("alipay.pay.appid")); map.put("notify", environment.getProperty("alipay.pay.notify")); map.put("javaversion", environment.getProperty("java.version")); map.put("javahome", environment.getProperty("JAVA_HOME")); map.put("mavenhome", environment.getProperty("MAVEN_HOME")); map.put("number",environment.getProperty("number")); return map; } @GetMapping("/read/value") public Map<String, Object> readInfo2() { Map<String, Object> map = new HashMap<>(); map.put("port", port); map.put("appid", appid); map.put("notify", notify); map.put("javaversion", javaVersion); map.put("javahome", javaHome); map.put("mavenhome", mavenHome); map.put("number",number); return map; } @GetMapping("/read/v2") public Map<String, Object> r2() { Map<String, Object> map = new HashMap<>(); map.put("port", port); map.put("appid", appid); map.put("notify", notify); map.put("javaversion", javaVersion); map.put("javahome", javaHome); map.put("mavenhome", mavenHome); map.put("number",number); return map; } }
application.properties
# 应用名称 spring.application.name=demo # 应用服务 WEB 访问端口 server.port=8080 spring.main.banner-mode=console alipay.pay.appid=123456 alipay.pay.notify=http://www.xxx.com # person.grade=0 # person.list=a,b,c # person.last-name=张坤 # person.sno=1223 number=11 server.servlet.encoding.charset=utf-8 server.servlet.encoding.force=true server.servlet.encoding.enabled=true
person.properties
person.grade=0 person.list=a,b,c person.last-name=张坤 person.sno=1223
SpringBootApplicationTest.java
package com.zk.demo; import com.zk.demo.Person; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.test.context.junit4.SpringRunner; @RunWith(SpringRunner.class) @SpringBootTest public class SpringBootApplicationTest { @Autowired Person person; @Test public void ContextLoads(){ System.out.println(person); } }
运行结果如下:
使用@PropertySource可以读出特定配置文件中的数据
二、@ImportResource
@ImportResource的作用是导入Spring配置文件,让配置文件中的内容生效
SpringBoot里面没有Spring的配置文件,我们自己编写的配置文件也不能自动识别。
首先创建一个helloService
helloService.java
package com.zk.demo; public class helloService { }
beans.xml
在beans.xml中注入这个类
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="helloService" class="com.zk.demo.helloService"></bean> </beans>
在SpringBootApplicationTest.java中编写测试用例
package com.zk.demo; import com.zk.demo.Person; import org.springframework.context.ApplicationContext; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.test.context.junit4.SpringRunner; @RunWith(SpringRunner.class) @SpringBootTest public class SpringBootApplicationTest { @Autowired Person person; @Autowired ApplicationContext ioc; @Test public void testHelloService(){ Boolean result=ioc.containsBean("helloService"); System.out.println(result); } @Test public void ContextLoads(){ System.out.println(person); } }
运行测试用例
此时运行结果为false。
说明IOC此时没有引入beans.xml这个配置文件,识别不到HelloService
然后在DemoApplication.java中使用@ImportResource注解引入beans.xml
package com.zk.demo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ImportResource; @ImportResource(locations = "classpath:beans.xml") @SpringBootApplication public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } }
此时获取值为true
标签:ImportResource,PropertySource,SpringBoot,map,springframework,import,put,org,publ 来源: https://www.cnblogs.com/longlyseul/p/16549255.html