建立项目与数据库

bookshelfplus/src/main/java/plus/bookshelf/App.java

@@ -0,0 +1,27 @@
+package plus.bookshelf;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * Hello world!
+ *
+ */
+@SpringBootApplication(scanBasePackages = { "plus.bookshelf" })
+@RestController
+@MapperScan("plus.bookshelf.mapper")
+public class App 
+{
+    public static void main( String[] args )
+    {
+        System.out.println( "Hello World!" );
+
+    }
+
+    @RequestMapping("/")
+    public String Home() {
+        return "首页";
+    }
+}