package com.vincent.rsf.server.common.utils;
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import com.alibaba.fastjson.JSONObject;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.ObjectWriter;
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import com.vincent.rsf.framework.common.Cools;
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import org.apache.poi.ss.formula.functions.T;
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import java.util.Map;
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/**
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* JSON解析工具类
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*
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* @author vincent
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* @since 2017-06-10 10:10:39
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*/
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public class JSONUtil {
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private static final ObjectMapper objectMapper = new ObjectMapper();
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private static final ObjectWriter objectWriter = objectMapper.writerWithDefaultPrettyPrinter();
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/**
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* 对象转json字符串
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*
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* @param value 对象
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* @return String
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*/
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public static String toJSONString(Object value) {
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return toJSONString(value, false);
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}
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/**
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* 对象转json字符串
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*
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* @param value 对象
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* @param pretty 是否格式化输出
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* @return String
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*/
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public static String toJSONString(Object value, boolean pretty) {
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if (value != null) {
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if (value instanceof String) {
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return (String) value;
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}
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try {
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if (pretty) {
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return objectWriter.writeValueAsString(value);
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}
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return objectMapper.writeValueAsString(value);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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return null;
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}
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/**
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* json字符串转对象
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*
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* @param json String
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* @param clazz Class
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* @return T
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*/
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public static <T> T parseObject(String json, Class<T> clazz) {
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if (!Cools.isEmpty(json) && clazz != null) {
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try {
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return objectMapper.readValue(json, clazz);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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return null;
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}
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}
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