#35 springboot: external read - @Value

springboot/external-read/src/main/java/hello/ExternalReadApplication.java

@@ -1,11 +1,13 @@
 package hello;
 
 import hello.config.MyDataSourceEnvConfig;
+import hello.config.MyDataSourceValueConfig;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.Import;
 
-@Import(MyDataSourceEnvConfig.class)
+//@Import(MyDataSourceEnvConfig.class)
+@Import(MyDataSourceValueConfig.class)
 @SpringBootApplication(scanBasePackages = "hello.datasource")
 public class ExternalReadApplication {
 

springboot/external-read/src/main/java/hello/config/MyDataSourceValueConfig.java

@@ -0,0 +1,45 @@
+package hello.config;
+
+import hello.datasource.MyDataSource;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import java.time.Duration;
+import java.util.List;
+
+@Slf4j
+@Configuration
+public class MyDataSourceValueConfig {
+
+    @Value("${my.datasource.url}")
+    private String url;
+    @Value("${my.datasource.username}")
+    private String username;
+    @Value("${my.datasource.password}")
+    private String password;
+    @Value("${my.datasource.etc.max-connection:2}")
+    private int maxConnection;
+    @Value("${my.datasource.etc.timeout}")
+    private Duration timeout;
+    @Value("${my.datasource.etc.options}")
+    private List<String> options;
+
+    @Bean
+    public MyDataSource myDataSource1() {
+        return new MyDataSource(url,username, password, maxConnection, timeout, options);
+    }
+
+    @Bean
+    public MyDataSource myDataSource2(
+            @Value("${my.datasource.url}") String url,
+            @Value("${my.datasource.username}") String username,
+            @Value("${my.datasource.password}") String password,
+            @Value("${my.datasource.etc.max-connection:2}") int maxConnection,
+            @Value("${my.datasource.etc.timeout}") Duration timeout,
+            @Value("${my.datasource.etc.options}") List<String> options
+    ) {
+        return new MyDataSource(url,username, password, maxConnection, timeout, options);
+    }
+}