diff --git a/renren-admin/src/main/java/io/renren/modules/category/service/impl/CategoryServiceImpl.java b/renren-admin/src/main/java/io/renren/modules/category/service/impl/CategoryServiceImpl.java
index b1d97bd2..e0e56bfa 100644
--- a/renren-admin/src/main/java/io/renren/modules/category/service/impl/CategoryServiceImpl.java
+++ b/renren-admin/src/main/java/io/renren/modules/category/service/impl/CategoryServiceImpl.java
@@ -11,6 +11,8 @@ import io.renren.modules.category.service.CategoryService;
 import io.renren.modules.resource.dao.AttrDao;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.CacheEvict;
+import org.springframework.cache.annotation.Cacheable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -26,7 +28,9 @@ import java.util.concurrent.Executors;
 @Service
 public class CategoryServiceImpl extends CrudServiceImpl<CategoryDao, Category, CategoryDTO> implements CategoryService {
     private static Integer cpuNUm = Runtime.getRuntime().availableProcessors();
-    private static final ExecutorService executor = Executors.newFixedThreadPool(cpuNUm);
+    private static final ExecutorService executor = Executors.newCachedThreadPool();
+
+    private static final String getCategoryTreeKey = "getCategoryTree";
 
     @Autowired
     private CategoryDao categoryDao;
@@ -39,6 +43,7 @@ public class CategoryServiceImpl extends CrudServiceImpl<CategoryDao, Category,
     }
 
     @Override
+    @Cacheable(value = getCategoryTreeKey, key = "'getCategoryTree'")
     public List<CategoryDTO> getCategoryTree() {
         List<Category> topCategory = categoryDao.selectByParentId(null);
         List<CategoryDTO> list = new CopyOnWriteArrayList<>();
@@ -82,6 +87,7 @@ public class CategoryServiceImpl extends CrudServiceImpl<CategoryDao, Category,
 
     @Override
     @Transactional
+    @CacheEvict(key = getCategoryTreeKey, allEntries = true)
     public void deleteByIds(JSONObject jsonObject) {
         JSONArray jsonArray = jsonObject.getJSONArray("ids");
         //TODO：删除为一级分类时，删除模板保存的文件夹？
@@ -125,6 +131,7 @@ public class CategoryServiceImpl extends CrudServiceImpl<CategoryDao, Category,
 
     @Override
     @Transactional
+    @CacheEvict(key = getCategoryTreeKey, allEntries = true)
     public void update(CategoryDTO categoryDTO) {
         super.update(categoryDTO);
         String oldName = categoryDao.selectById(categoryDTO.getId()).getName();
diff --git a/renren-admin/src/main/resources/application-dev.yml b/renren-admin/src/main/resources/application-dev.yml
index bb675498..58bd4485 100644
--- a/renren-admin/src/main/resources/application-dev.yml
+++ b/renren-admin/src/main/resources/application-dev.yml
@@ -26,10 +26,13 @@ spring:
       #      url: jdbc:postgresql://192.168.10.10:5432/postgres
       #      username: postgres
       #      password: 123456
-      initial-size: 10
-      max-active: 100
-      min-idle: 10
-      max-wait: 10
+      initial-size: 50
+      max-active: 1000
+      min-idle: 100
+      max-wait: 100
+      removeAbandoned: true
+      removeAbandonedTimeout: 300
+      logAbandoned: false
       pool-prepared-statements: true
       max-pool-prepared-statement-per-connection-size: 20
       time-between-eviction-runs-millis: 60000
diff --git a/renren-admin/src/main/resources/ehcache.xml b/renren-admin/src/main/resources/ehcache.xml
index 746310c3..6b205305 100644
--- a/renren-admin/src/main/resources/ehcache.xml
+++ b/renren-admin/src/main/resources/ehcache.xml
@@ -66,4 +66,13 @@
            overflowToDisk="true"
            memoryStoreEvictionPolicy="LRU"/>
 
+    <!-- getCategoryTree缓存 -->
+    <cache name="getCategoryTree"
+           maxElementsInMemory="10000"
+           eternal="false"
+           timeToIdleSeconds="60"
+           timeToLiveSeconds="600"
+           overflowToDisk="true"
+           memoryStoreEvictionPolicy="LRU"/>
+
 </ehcache>
\ No newline at end of file