jackson把json字符串转对象出错

最近遇到一个奇葩的问题，json字符串中含有unicode编码，但是却无法转码。即使转码之后也是一些类似于（á��á��á��á�¸ á�¢á�¶á��á�¼）这样的字符。

{
  "education_experiences": [
      {
        "name": "\u00e6\u00b9\u0096\u00e5\u008c\u0097\u00e6\u0096\u0087\u00e7\u0090\u0086\u00e5\u00ad\u00a6\u00e9\u0099\u00a2",
        "start_timestamp": 1346428800,
        "end_timestamp": 1464753600,
        "graduated": true,
        "concentrations": [
          "\u00e8\u00ae\u00a1\u00e7\u00ae\u0097\u00e6\u009c\u00ba\u00e7\u00a7\u0091\u00e5\u00ad\u00a6\u00e4\u00b8\u0093\u00e4\u00b8\u009a",
          "\u00e9\u009f\u00b3\u00e4\u00b9\u0090\u00e5\u00ad\u00a6"
        ],
        "school_type": "College"
      },
      {
        "name": "\u00e8\u00a5\u0084\u00e5\u00b7\u009e\u00e5\u008c\u00ba\u00e4\u00ba\u008c\u00e4\u00b8\u00ad",
        "start_timestamp": 1220716800,
        "end_timestamp": 1307678400,
        "graduated": true,
        "description": "high",
        "school_type": "High School"
      }
    ]
}

最后问了同事采用下面的代码解决了这个问题：

String content = FileUtils.readFileToString(new File(filePath),"utf-8");
content = StringEscapeUtils.unescapeJava(content);
ObjectMapper mapper=new ObjectMapper();
content = new String(content.getBytes(StandardCharsets.ISO_8859_1), StandardCharsets.UTF_8);

但是如果字符串中含有换行符就会出错：

Caused by: com.fasterxml.jackson.core.JsonParseException: Illegal unquoted character ((CTRL-CHAR, code 10)): has to be escaped using backslash to be included in string value

增加配置解决：

mapper.configure(com.fasterxml.jackson.core.JsonParser.Feature.ALLOW_UNQUOTED_CONTROL_CHARS, true);

参考文档：

• https://stackoverflow.com/questions/31537153/jsonparseexception-illegal-unquoted-character-ctrl-char-code-10
• https://blog.csdn.net/legend_x/article/details/31767083