修改sql通用查询：如果是show语句，则显示全部

@@ -128,9 +128,9 @@ public class SqlOperateServiceImpl implements SqlOperateService {
         if(sql.endsWith(";")){
             sql = sql.substring(0,sql.length()-1);
         }
-        boolean descQueryFlag=false;
-        if(sql.toLowerCase().startsWith("desc ")){
-            descQueryFlag=true;
+        boolean descOrShowFlag=false;
+        if(sql.toLowerCase().startsWith("desc ")||sql.toLowerCase().startsWith("show ")){
+            descOrShowFlag=true;
         }
 
         log.info("query4Table begin "+sql);
@@ -160,7 +160,7 @@ public class SqlOperateServiceImpl implements SqlOperateService {
             st = con.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
             st.setFetchSize(FETCH_COUNT_FROM_MYSQL);
             //不是desc的查询需要限定数量了
-            if(!descQueryFlag){
+            if(!descOrShowFlag){
                 st.setMaxRows(FETCH_COUNT_FROM_MYSQL);
             }
             //st.setMaxRows(FETCH_COUNT_FROM_MYSQL);
@@ -210,7 +210,7 @@ public class SqlOperateServiceImpl implements SqlOperateService {
 
             while (rs.next()) {
                 times++;
-                if(!descQueryFlag&&times>MAX_QUERY_RESULT_COUNT){
+                if(!descOrShowFlag&&times>MAX_QUERY_RESULT_COUNT){
                     queryDescr="数据量超过limit限制，自动显示前"+MAX_QUERY_RESULT_COUNT+"条";
                     break;
                 }