Java SQL ResultSet to toJSONFromResultSet(ResultSet resultSet)

Description

to JSON From Result Set

License

Apache License

Declaration

public static String toJSONFromResultSet(ResultSet resultSet) throws SQLException 

Method Source Code

//package com.java2s;
/*--------------------------------------------------------------------------
 *  Copyright 2007 Taro L. Saito/*  w  w w.  ja  v a  2  s . c om*/
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *--------------------------------------------------------------------------*/

import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;

public class Main {
    public static String toJSONFromResultSet(ResultSet resultSet) throws SQLException {
        StringBuilder builder = new StringBuilder();
        ResultSetMetaData metadata = resultSet.getMetaData();
        int colCount = metadata.getColumnCount();
        builder.append("{");
        for (int i = 1; i <= colCount; i++) {
            if (i >= 2)
                builder.append(",");
            Object value = resultSet.getObject(i);
            builder.append("\"");
            builder.append(metadata.getColumnName(i));
            builder.append("\":");
            if (value != null) {
                builder.append("\"");
                builder.append(value.toString());
                builder.append("\"");
            } else
                builder.append("null");
        }
        builder.append("}");
        return builder.toString();
    }
}

Related

1. resultSetToString(ResultSet resultSet)
2. resultSetToString(ResultSet resultSet)
3. resultSetToXML(ResultSet rs)
4. toArrayList(ResultSet rs)
5. toAttributeMap(ResultSet resultSet)
6. toListMap(int limit, ResultSet rs)
7. toMap(final ResultSet resultSet)
8. toMap(final ResultSet resultSet)
9. toMapList(ResultSet rs)