diff --git a/src/org/redkale/source/DataSources.java b/src/org/redkale/source/DataSources.java
index 5b5d5adbd..bb9bd4ef4 100644
--- a/src/org/redkale/source/DataSources.java
+++ b/src/org/redkale/source/DataSources.java
@@ -23,7 +23,7 @@ public final class DataSources {
 
     public static final String JDBC_CACHE_MODE = "javax.persistence.cachemode";
 
-    public static final String JDBC_CONNECTIONSMAX = "javax.persistence.connections.limit";
+    public static final String JDBC_CONNECTIONS_LIMIT = "javax.persistence.connections.limit";
 
     public static final String JDBC_CONNECTIONSCAPACITY = "javax.persistence.connections.bufcapacity";
 
diff --git a/src/org/redkale/source/DataSqlSource.java b/src/org/redkale/source/DataSqlSource.java
index 4e951598b..125519b72 100644
--- a/src/org/redkale/source/DataSqlSource.java
+++ b/src/org/redkale/source/DataSqlSource.java
@@ -68,10 +68,10 @@ public abstract class DataSqlSource<DBChannel> extends AbstractService implement
     @SuppressWarnings({"OverridableMethodCallInConstructor", "LeakingThisInConstructor"})
     public DataSqlSource(String unitName, URL persistxml, Properties readprop, Properties writeprop) {
         final AtomicInteger counter = new AtomicInteger();
-        this.threads = Integer.decode(readprop.getProperty(JDBC_CONNECTIONSMAX, "" + Runtime.getRuntime().availableProcessors() * 16));
-        int maxconns = Math.max(8, Integer.decode(readprop.getProperty(JDBC_CONNECTIONSMAX, "" + Runtime.getRuntime().availableProcessors() * 200)));
+        this.threads = Integer.decode(readprop.getProperty(JDBC_CONNECTIONS_LIMIT, "" + Runtime.getRuntime().availableProcessors() * 16));
+        int maxconns = Math.max(8, Integer.decode(readprop.getProperty(JDBC_CONNECTIONS_LIMIT, "" + Runtime.getRuntime().availableProcessors() * 200)));
         if (readprop != writeprop) {
-            this.threads += Integer.decode(writeprop.getProperty(JDBC_CONNECTIONSMAX, "" + Runtime.getRuntime().availableProcessors() * 16));
+            this.threads += Integer.decode(writeprop.getProperty(JDBC_CONNECTIONS_LIMIT, "" + Runtime.getRuntime().availableProcessors() * 16));
             maxconns = 0;
         }
         final String cname = this.getClass().getSimpleName();
diff --git a/src/org/redkale/source/PoolSource.java b/src/org/redkale/source/PoolSource.java
index e52d8ae3a..5ee58c439 100644
--- a/src/org/redkale/source/PoolSource.java
+++ b/src/org/redkale/source/PoolSource.java
@@ -72,7 +72,7 @@ public abstract class PoolSource<DBChannel> {
         this.connectTimeoutSeconds = Integer.decode(prop.getProperty(JDBC_CONNECTTIMEOUT_SECONDS, "3"));
         this.readTimeoutSeconds = Integer.decode(prop.getProperty(JDBC_READTIMEOUT_SECONDS, "3"));
         this.writeTimeoutSeconds = Integer.decode(prop.getProperty(JDBC_WRITETIMEOUT_SECONDS, "3"));
-        this.maxconns = Math.max(8, Integer.decode(prop.getProperty(JDBC_CONNECTIONSMAX, "" + Runtime.getRuntime().availableProcessors() * 100)));
+        this.maxconns = Math.max(8, Integer.decode(prop.getProperty(JDBC_CONNECTIONS_LIMIT, "" + Runtime.getRuntime().availableProcessors() * 100)));
         this.semaphore = new Semaphore(this.maxconns);
         String dbtype0 = "";
         { //jdbc:mysql:// jdbc:microsoft:sqlserver:// 取://之前的到最后一个:之间的字符串