content: package com.alibaba.druid.bvt.sql.mysql.param;
  
  import com.alibaba.druid.DbType;
  import com.alibaba.druid.sql.SQLUtils;
  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;
  import com.alibaba.druid.util.JdbcConstants;
  import junit.framework.TestCase;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * Created by wenshao on 16/8/23.
   */
  public class MySqlParameterizedOutputVisitorTest_24 extends TestCase {
      public void test_for_parameterize() throws Exception {
          final DbType dbType = JdbcConstants.MYSQL;
  
          String sql = "SELECT `xxx_reverse_order`.`id` from xxx_reverse_order_0446 xxx_reverse_order limit 1;";
  
          String psql = ParameterizedOutputVisitorUtils.parameterize(sql, dbType);
          assertEquals("SELECT `xxx_reverse_order`.`id`\n" +
                  "FROM xxx_reverse_order xxx_reverse_order\n" +
                  "LIMIT ?;", psql);
  
          SQLStatementParser parser = SQLParserUtils.createSQLStatementParser(psql, dbType);
          List<SQLStatement> stmtList = parser.parseStatementList();
  
          StringBuilder out = new StringBuilder();
          SQLASTOutputVisitor visitor = SQLUtils.createOutputVisitor(out, JdbcConstants.MYSQL);
          List<Object> parameters = new ArrayList<Object>();
          visitor.setParameterized(true);
          visitor.setParameterizedMergeInList(true);
          visitor.setParameters(parameters);
          visitor.setExportTables(true);
          /*visitor.setPrettyFormat(false);*/
  
          SQLStatement stmt = stmtList.get(0);
          stmt.accept(visitor);
  
          // System.out.println(parameters);
          assertEquals(0, parameters.size());
  
          StringBuilder buf = new StringBuilder();
          SQLASTOutputVisitor visitor1 = SQLUtils.createOutputVisitor(buf, dbType);
          visitor1.addTableMapping("xxx_reverse_order", "xxx_reverse_order_0446");
          visitor1.setParameters(visitor.getParameters());
          stmt.accept(visitor1);
  
          assertEquals("SELECT `xxx_reverse_order`.`id`\n" +
                  "FROM xxx_reverse_order_0446 xxx_reverse_order\n" +
                  "LIMIT ?;", buf.toString());
      }
  }
  