JSON格式化和压缩成一行

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.apache.commons.lang3.StringUtils;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
* 格式化json<br/>
* java去掉String里面的空格、回车、换行符、制表符等
* @Author: Wiener
* @Date: 2021/9/25 19:52
*/
public class JsonUtil {
public static final String EMPTY = "";
/**
* 替换所有空格，留下一个
*/
private static final String REPLACE_BLANK_ENTER = "\\s{2,}|\t|\r|\n";
private static final Pattern REPLACE_P = Pattern.compile(REPLACE_BLANK_ENTER);
/**
* 使用正则表达式删除字符串中的空格、回车、换行符、制表符
* @param str
* @return
*/
public static String replaceAllBlank(String str) {
String dest = "";
if (StringUtils.isNotBlank(str)) {
Matcher m = REPLACE_P.matcher(str);
dest = m.replaceAll("");
}
return dest;
}
/**
* 去除字符串中的空格、回车、换行符、制表符
* \n 回车(\u000a)
* \t 水平制表符(\u0009)
* \s 空格(\u0008)
* \r 换行(\u000d)
* @param source
* @return
*/
public static String replaceBlank(String source) {
String ret = EMPTY;
if (StringUtils.isNotBlank(source)) {
ret = source.replaceAll(StringUtils.LF, EMPTY)
.replaceAll("\\s{2,}", EMPTY)
.replaceAll("\\t", EMPTY)
.replaceAll(StringUtils.CR, EMPTY);
}
return ret;
}

/**
* 使用fastjson JSONObject格式化输出JSON字符串
* @param source
* @return
*/
public static String formatJson(String source) {
JSONObject object = JSONObject.parseObject(source);
String pretty = JSON.toJSONString(object, SerializerFeature.PrettyFormat,
SerializerFeature.WriteMapNullValue,
SerializerFeature.WriteDateUseDateFormat);
return pretty;
}
public static String formatJsonOneRow(String source) {
JSONObject object = JSONObject.parseObject(source);
String pretty = JSON.toJSONString(object, SerializerFeature.PrettyFormat,
SerializerFeature.WriteMapNullValue,
SerializerFeature.WriteDateUseDateFormat);
return pretty;
}
public static void main(String[] args) {
String source = "{\"name\":\"JSON String\",\"age\":\"29\",\"address\":\"河南省 商丘师范学院，坐标: x, y\",\"addressTest\":\"无对应属性，不转换\"}";
System.out.println("-------formatJson---------");
System.out.println(formatJson(source));
System.out.println("-------replaceBlank---------");
System.out.println(replaceBlank(source));
System.out.println("-------replaceAllBlank---------");
System.out.println(replaceAllBlank(source));
}
}