去掉JSON字符串中的转义字符

import org.apache.commons.lang.StringEscapeUtils;

public class RemoveTest {

    public static void main(String[] args) {
        String str = "{\"name\": \"tom\", \"age\": 18}";
        // {"name": "tom", "age": 18}
        System.out.println(str);
        String escapeStr = StringEscapeUtils.unescapeJava(str);
        // {"name": "tom", "age": 18}
        System.out.println(escapeStr);
    }
}