echo application info

Author: netbuffer

help/http-requests.http

@@ -58,3 +58,6 @@ GET http://localhost:9100/param/getRemotePort
 
 ### /param/getLocalPort
 GET http://localhost:9100/param/getLocalPort
+
+### /application/info
+GET http://localhost:9100/application/info

src/main/java/cn/netbuffer/springboot/demo/controller/ApplicationInfoController.java

@@ -0,0 +1,37 @@
+package cn.netbuffer.springboot.demo.controller;
+
+import io.micrometer.core.instrument.util.IOUtils;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.context.ApplicationContext;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import javax.annotation.Resource;
+import java.io.IOException;
+
+@Slf4j
+@RestController
+@RequestMapping("/application/info")
+public class ApplicationInfoController {
+
+    @Resource
+    private ApplicationContext applicationContext;
+    private String gitProperties = "git.properties";
+
+    @GetMapping
+    public String info() {
+        org.springframework.core.io.Resource resource = applicationContext.getResource("classpath:"+gitProperties);
+        log.debug("check {} isExist={}", gitProperties, resource.exists());
+        String info = "nothing";
+        if (resource.exists()) {
+            try {
+                info = IOUtils.toString(resource.getInputStream());
+            } catch (IOException e) {
+                info = "error info";
+                log.error("read {} error", gitProperties, e);
+            }
+        }
+        return info;
+    }
+
+}