Java Json Encode jsonEncodeString(String text)

Description

Lets make sure we encode the given string so its a valid JSON value which is wrapped in quotes if its not null

License

Apache License

Declaration

public static String jsonEncodeString(String text) 

Method Source Code

//package com.java2s;
/**//from   w w  w  .j  av  a2s . co m
 *  Copyright 2005-2014 Red Hat, Inc.
 *
 *  Red Hat licenses this file to you 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.
 */

public class Main {
    /**
     * Lets make sure we encode the given string so its a valid JSON value
     * which is wrapped in quotes if its not null
     */
    public static String jsonEncodeString(String text) {
        if (text == null) {
            return "null";
        }
        StringBuilder buffer = new StringBuilder("\"");
        int length = text.length();
        for (int i = 0; i < length; i++) {
            char ch = text.charAt(i);
            if (ch == '"') {
                buffer.append("\\\"");
            } else {
                buffer.append(ch);
            }
        }
        buffer.append("\"");
        return buffer.toString();
    }
}

Related

1. jsonEncode(final String val)