commit

src/main/java/top/fjy8018/demo/DemoApplication.java

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+package top.fjy8018.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@SpringBootApplication
+public class DemoApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(DemoApplication.class, args);
+    }
+
+    @RequestMapping("/{content}")
+    public String helloWorld(@PathVariable(name = "content", required = false) String content) {
+        return "hello , " + content;
+    }
+
+}

src/main/resources/application.yml

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+server:
+  port: 8080

src/test/java/top/fjy8018/demo/DemoApplicationTests.java

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+package top.fjy8018.demo;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class DemoApplicationTests {
+
+    @Test
+    public void contextLoads() {
+    }
+
+}