java - objectMapper 将印地语文本转换为特殊字符 "???"

Question

我正在将印地语存储在数据库中。 在我的 fetch 方法中，我使用 objectMapper 它将印地语字体转换为特殊字符。没有objectmapper它工作正常。

@CrossOrigin
    @RequestMapping(value = "", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<?> fetchDepartmentInfo() {
        try {
            List<Map<String, Object>> departmentList = departmentServices.fetchDepartments();

            if (departmentList == null || departmentList.isEmpty())
                return new ResponseEntity<>(HttpStatus.NO_CONTENT);
            else
                return new ResponseEntity<String>(new ObjectMapper().writeValueAsString(departmentList), HttpStatus.OK);
        } catch (Exception e) {
            System.out.println(e);
            return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
        }
    }

o/p:

[
    {
        "department": "?? ?? ?????",
        "departmentId": 1
    }
]

但应该是:

[
    {
        "department": "जल कल विभाग",
        "departmentId": 1
    }
]

Answer 1

刚刚将 mediaType 更改为 APPLICATION_JSON_UTF8_VALUE

@CrossOrigin
        @RequestMapping(value = "", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
        public ResponseEntity<?> fetchDepartmentInfo() {
            try {
                List<Map<String, Object>> departmentList = departmentServices.fetchDepartments();

                if (departmentList == null || departmentList.isEmpty())
                    return new ResponseEntity<>(HttpStatus.NO_CONTENT);
                else
                    return new ResponseEntity<String>(new ObjectMapper().writeValueAsString(departmentList), HttpStatus.OK);
            } catch (Exception e) {
                System.out.println(e);
                return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
            }
        }

它解决了我的问题。