修正输出格式

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@159 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlOutputVisitor.java

@@ -179,11 +179,12 @@ public class MySqlOutputVisitor extends SQLASTOutputVisitor implements MySqlASTV
         }
 
         if (select.getGroupBy() != null) {
+            println();
             select.getGroupBy().accept(this);
         }
 
         if (select.getOrderBy() != null) {
-            print(" ");
+            println();
             select.getOrderBy().accept(this);
         }
 

src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlParameterizedOutputVisitor.java

@@ -2,10 +2,13 @@ package com.alibaba.druid.sql.dialect.mysql.visitor;
 
 import com.alibaba.druid.sql.ast.expr.SQLBinaryOpExpr;
 import com.alibaba.druid.sql.ast.expr.SQLBinaryOperator;
+import com.alibaba.druid.sql.ast.expr.SQLCharExpr;
 import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
 import com.alibaba.druid.sql.ast.expr.SQLInListExpr;
 import com.alibaba.druid.sql.ast.expr.SQLIntegerExpr;
 import com.alibaba.druid.sql.ast.expr.SQLLiteralExpr;
+import com.alibaba.druid.sql.ast.expr.SQLNCharExpr;
+import com.alibaba.druid.sql.ast.expr.SQLNumberExpr;
 import com.alibaba.druid.sql.ast.expr.SQLVariantRefExpr;
 import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlInsertStatement;
 
@@ -40,7 +43,7 @@ public class MySqlParameterizedOutputVisitor extends MySqlOutputVisitor {
             print(x.getRight().toString());
             return false;
         }
-        
+
         x = merge(x);
 
         return super.visit(x);
@@ -92,6 +95,21 @@ public class MySqlParameterizedOutputVisitor extends MySqlOutputVisitor {
         return false;
     }
 
+    public boolean visit(SQLNumberExpr x) {
+        print('?');
+        return false;
+    }
+
+    public boolean visit(SQLCharExpr x) {
+        print('?');
+        return false;
+    }
+
+    public boolean visit(SQLNCharExpr x) {
+        print('?');
+        return false;
+    }
+
     @Override
     public boolean visit(MySqlInsertStatement x) {
         print("INSERT ");