Java Object to Json toJson(Object obj)

Description

to Json

License

Open Source License

Declaration

public static String toJson(Object obj) 

Method Source Code

//package com.java2s;
/*// w  w w  . j av a  2 s  .co m
 * Copyright 2014 Jim. All Rights Reserved.
 *
 * 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 com.fasterxml.jackson.databind.ObjectMapper;

public class Main {
    private static ObjectMapper mapper;

    public static String toJson(Object obj) {
        try {
            return mapper.writeValueAsString(obj);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public static String toJSON(int ret) {
        String msg = "Error data!";
        if (ret == 0) {
            msg = "ok";
        }
        return toJSON("null", msg, ret);
    }

    public static String toJSON(String msg, int ret) {
        return toJSON("null", msg, ret);
    }

    /**
     * 
     * @param data
     *            json data
     * @param msg
     *            message
     * @param ret
     *            0--true, not 0--false
     * @return
     */
    public static String toJSON(String data, String msg, int ret) {
        StringBuilder sb = new StringBuilder();
        sb.append('{');
        sb.append("\"data\":");
        sb.append(data);
        sb.append(",\"msg\":\"");
        sb.append(msg);
        sb.append("\",\"ret\":");
        sb.append(ret);
        sb.append('}');
        return sb.toString();
    }
}

Related

1. toJson(Object message)
2. toJson(Object o)
3. toJson(Object o)
4. toJSON(Object obj)
5. toJSON(Object obj)
6. toJson(Object object)
7. toJson(Object object)
8. toJson(Object object)
9. toJson(Object value)