support reset filters

2023-03-04 19:17:16 +00:00 · 2013-06-14 15:52:47 +08:00
parent d84bdb55d0
commit d27e97f126
3 changed files with 88 additions and 1 deletions
@@ -0,0 +1,57 @@
+package com.alibaba.druid.pool;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.util.List;
+
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.parser.SQLParserUtils;
+import com.alibaba.druid.sql.parser.SQLStatementParser;
+import com.alibaba.druid.sql.visitor.ParameterizedOutputVisitorUtils;
+import com.alibaba.druid.sql.visitor.SQLASTOutputVisitor;
+
+public class MemTest {
+
+    public static void main(String[] args) throws Exception {
+//        DruidDataSource dataSource = new DruidDataSource();
+//        dataSource.setUrl("jdbc:mock:xxx");
+//        dataSource.setInitialSize(1);
+//        dataSource.setDbType("mysql");
+//        dataSource.setFilters("mergeStat");
+        // dataSource.setPoolPreparedStatements(true);
+        // dataSource.setMaxOpenPreparedStatements(50);
+
+        // for (int i = 1000; i < 2000; ++i) {
+        // String tableName = "t" + i;
+        // String sql = "select * from " + tableName + " where " + tableName + ".id = " + i;
+        // Connection conn = dataSource.getConnection();
+        //
+        // PreparedStatement stmt = conn.prepareStatement(sql);
+        // stmt.execute();
+        // stmt.close();
+        //
+        // conn.close();
+        // }
+
+        // Connection conn = dataSource.getConnection();
+        //
+        String sql = "SELECT UMID, HWID, MAC, GUID, RID , GMT_CREATE, GMT_MODIFIED FROM umid_rid " + //
+                     "WHERE RID = ? " + //
+                     "LIMIT 10";
+        // PreparedStatement stmt = conn.prepareStatement(sql);
+        // stmt.execute();
+
+        SQLStatementParser parser = SQLParserUtils.createSQLStatementParser(sql, "mysql");
+        List<SQLStatement> statementList = parser.parseStatementList();
+
+        SQLStatement stmt = statementList.get(0);
+
+        StringBuilder out = new StringBuilder();
+        SQLASTOutputVisitor visitor = ParameterizedOutputVisitorUtils.createParameterizedOutputVisitor(out, "mysql");
+        stmt.accept(visitor);
+
+        Thread.sleep(1000 * 1000);
+//        dataSource.close();
+    }
+}