Support get spring.log api.

src/main/java/run/halo/app/controller/admin/api/AdminController.java

@@ -2,11 +2,13 @@ package run.halo.app.controller.admin.api;
 
 import io.swagger.annotations.ApiOperation;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.*;
 import run.halo.app.cache.lock.CacheLock;
 import run.halo.app.model.dto.EnvironmentDTO;
 import run.halo.app.model.dto.StatisticDTO;
 import run.halo.app.model.params.LoginParam;
+import run.halo.app.model.support.BaseResponse;
 import run.halo.app.security.token.AuthToken;
 import run.halo.app.service.AdminService;
 
@@ -16,6 +18,7 @@ import javax.validation.Valid;
  * Admin controller.
  *
  * @author johnniang
+ * @author ryanwang
  * @date 3/19/19
  */
 @Slf4j
@@ -73,4 +76,9 @@ public class AdminController {
         adminService.updateAdminAssets();
     }
 
+    @GetMapping("spring/logs")
+    @ApiOperation("Get application logs")
+    public BaseResponse<String> getSpringLogs() {
+        return BaseResponse.ok(HttpStatus.OK.getReasonPhrase(),adminService.getSpringLogs());
+    }
 }

src/main/java/run/halo/app/service/AdminService.java

@@ -26,6 +26,8 @@ public interface AdminService {
 
     String REFRESH_TOKEN_CACHE_PREFIX = "halo.admin.refresh_token.";
 
+    String LOGS_PATH = "logs/spring.log";
+
     /**
      * Authenticates.
      *
@@ -69,4 +71,10 @@ public interface AdminService {
      * Updates halo admin assets.
      */
     void updateAdminAssets();
+
+    /**
+     * Get spring logs.
+     * @return recently logs.
+     */
+    String getSpringLogs();
 }

src/main/java/run/halo/app/service/impl/AdminServiceImpl.java

@@ -1,5 +1,6 @@
 package run.halo.app.service.impl;
 
+import cn.hutool.core.io.file.FileReader;
 import cn.hutool.core.lang.Validator;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
@@ -32,6 +33,7 @@ import run.halo.app.service.*;
 import run.halo.app.utils.FileUtils;
 import run.halo.app.utils.HaloUtils;
 
+import java.io.File;
 import java.io.IOException;
 import java.lang.management.ManagementFactory;
 import java.lang.management.RuntimeMXBean;
@@ -373,4 +375,19 @@ public class AdminServiceImpl implements AdminService {
 
         return token;
     }
+
+    /**
+     * Get spring logs.
+     *
+     * @return recently logs.
+     */
+    @Override
+    public String getSpringLogs() {
+        File file = new File(haloProperties.getWorkDir(), LOGS_PATH);
+        if (!file.exists()) {
+            return "暂无日志";
+        }
+        FileReader reader = new FileReader(file);
+        return reader.readString();
+    }
 }