我在使用返回JSON字符串的API时遇到了一个问题。当尝试将JSON字符串响应从API转换为Map <String，Object>时，它会抛出错误。但是，当我手动将相同的JSON字符串响应嵌入到代码中并执行到Map <String，Object>的转换时，它可以无缝工作。事实证明，理解此行为对我来说相当具有挑战性
错误：
在上下文初始化过程中遇到异常-取消刷新尝试：org. springframework. beans. factory. BeanCreationException：创建名为'testService'的bean时出错：调用init方法失败;嵌套异常为java. lang。RuntimeException：com. fasterxml. jackson. databind. exc. MismatchedInputException：无法构造java.util.LinkedHashMap的示例（尽管至少存在一个创建者）：没有要从[Source：（String）""{"DXX "：{" NX"："XXDHX XXK XIMIXED"，"X00165401100000087"，"NXme1"："XINHX"，"XXhmId"："16401"，"XXhmNXme"："16401"]处的String值（"{"）中进行格式化的String参数构造函数/工厂方法："MXXXEXXXXD WXXXD"，"Incubation"："1"，"XXXNXme"："XXXIVE"，"XXXXhgDX"："0000000"，"XpeXXXXMXinX"："XYX "，" DXXXXMXinX "：" 0000000 "，" XvXXXg "：" I "，" XvXXXgNXme "：" INDIVIDUXX "，" XuXXDiXXXXg "：" N"，"XuXXDiXXXXXDX"："0000000"，"XuXXDiXXDX"："0000000000000000000000 "，" XXkMXde "：" P "，" DeXqMXde "：" P "，" HighXedeemXmX "：" 0"，"HighXedeemPXX"："0"，"XXXXXhVXX"："0"，"XXdPXXEXXXnd"："200"，" XXdPXXXXXughX"：" 0"，" XXdPXXXnuX"："" 0"，"[截断的1399个字符];行：1，列：1]
JSON字符串：
{
"DXX": {
"NX": "XXDHX XXK XIMIXED",
"XXXX": "X001654011000000087",
"NXme1": "XINHX",
"XXhmId": "16401",
"XXhmNXme": "MXXXEXXXXD WXXXD",
"InXXXX": "1",
"XXXNXme": "XXXIVE",
"XXXXhgDX": "00000000",
"XpeXXXXMXinX": "XYX",
"DXXXXMXinX": "00000000",
"XvXXXg": "I",
"XvXXXgNXme": "INDIVIDUXX",
"XuXXDiXXXXg": "N",
"XuXXDiXXXXXDX": "00000000",
"XuXXDiXXXXXX": "0000000000000000000000000",
"XXkMXde": "P",
"DeXqMXde": "P",
"HighXedeemXmX": "0",
"HighXedeemPXX": "0",
"XXXXXhVXX": "0",
"XXdPXXEXXnd": "70610",
"XXdPXXXXughX": "0",
"XXdPXXXnuX": "0",
"XXdPXXXedeemed": "967",
"XXdPXXXXXed": "0",
"XXdPXXExpiXed": "0",
"XXdPXXXdjIn": "10000",
"XXdPXXXdjXuX": "0",
"GXXXeXXd": "0",
"XyXXXDXXXX": "10198",
"XXdXpndEXXnd": "0",
"YXdXpendEXXnd": "0",
"XiXeXXDXXXX": "79643",
"PXPXXXNXXXXd": "0",
"XpenXXXedXnXXX": "79643",
"XXmXMXhXXeq": "1",
"XXmXDXyXXMXh": "15",
"XXXXXmXDX": "20231215",
"NexXXXmXDX": "20240115",
"DXXpened": "20231204",
"DiXXPkXPXX": "0",
"DiXXPkXMXnVXXPXX": "0",
"XuXXDiXXXXeq": "0",
"XuXXDiXXDXyXXMXh": "0",
"XXXXDiXXuXXeDX": "00000000",
"XuXXDiXXXhXeXhXd": "0",
"XuXXDiXXMXnVXX": "0",
"WXiveMemXXee": "N",
"XXXpnDX": "2023338",
"XeXXXeXmX": "0",
"XuXXNXd": "2",
"PeXIXemNXd": "0",
"PXXXXXeNXd": "7",
"XnXXyXd": "IND",
"XuXXXd": "356",
"NXXMXhDXXXXXuX": "1",
"MXnXhXyXXXhXXXkGXXup": [
{
"DiXXXmX": "0",
"DiXXMXhDX": "20231215"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
},
{
"DiXXXmX": "0",
"DiXXMXhDX": "00000000"
}
],
"XXXXXpenXniDXXe": "20241204",
"XXdDiXXXXXhXXXk": "0",
"XXdXpendXmX": "0"
}
}字符串
验证码：
HttpHeaders headers = new HttpHeaders();
RestTemplate restTemplate = new RestTemplate();
headers.setContentType(MediaType.APPLICATION_JSON);
headers.setAccept(Collections.singletonList(MediaType.ALL));
headers.add("api_key","qwerqwersadfaf");
headers.add("x-session-id","asdfasdf");
headers.add("x-user-id","asdfasdfas");
headers.add("x-message-id","asdfasdfas");
String bodyTopost = "{\"Data\": {\"Account\": \"SAMPLEaccount\",\"Schm\": \"168401\"}}";
HttpEntity<String> entity = new HttpEntity<String>(bodyTopost, headers);
ParameterizedTypeReference<String> parameterizedTypeReference = new ParameterizedTypeReference<String>() {
};
String inputUrl = "https://api.testbank.co.in/cons/abcd/v1";
try {
ResponseEntity<String> result = restTemplate.exchange(inputUrl, HttpMethod.POST, entity, parameterizedTypeReference);
if (result.getStatusCode().is2xxSuccessful()) {
if (result.getBody() != null) {
String resultBody = result.getBody().replace("\\", "");
logger.info("Response value is {}", resultBody);
ObjectMapper mapper = new ObjectMapper();
Map<String, Object> map = mapper.readValue(resultBody, Map.class);
return map;
} else {
logger.info("Payload is null");
return null;
}
} else {
logger.info("Failed to execute api");
return null;
}
} catch (ResourceAccessException e) {
logger.info("Resource Erro {} ", e);
return null;
} catch (RestClientException e) {
logger.info("Rest Error Erro {} ", e);
return null;
} catch (JsonMappingException e) {
throw new RuntimeException(e);
} catch (JsonProcessingException e) {
throw new RuntimeException(e);
}型
当尝试将JSON字符串响应从API转换为Map <String，Object>时，它会抛出错误。然而，当我手动将相同的JSON字符串响应嵌入到代码中并执行到Map <String，Object>的转换时，它可以无缝地工作。
String data="{"DXX":{"NX":"XXDHX XXK XIMIXED","XXXX":"X001654011000000087","NXme1":"XINHX","XXhmId":"16401","XXhmNXme":"MXXXEXXXXD WXXXD","InXXXX":"1","XXXNXme":"XXXIVE","XXXXhgDX":"00000000","XpeXXXXMXinX":"XYX","DXXXXMXinX":"00000000","XvXXXg":"I","XvXXXgNXme":"INDIVIDUXX","XuXXDiXXXXg":"N","XuXXDiXXXXXDX":"00000000","XuXXDiXXXXXX":"0000000000000000000000000","XXkMXde":"P","DeXqMXde":"P","HighXedeemXmX":"0","HighXedeemPXX":"0","XXXXXhVXX":"0","XXdPXXEXXnd":"200","XXdPXXXXughX":"0","XXdPXXXnuX":"0","XXdPXXXedeemed":"2","XXdPXXXXXed":"0","XXdPXXExpiXed":"0","XXdPXXXdjIn":"10000","XXdPXXXdjXuX":"0","GXXXeXXd":"0","XyXXXDXXXX":"10198","XXdXpndEXXnd":"0","XXdPXXEXXnd":"70610","XXdPXXXXughX":"0","XXdPXXXnuX":"0","XXdPXXXedeemed":"967","XXdPXXXXXed":"0","XXdPXXExpiXed":"0","XXdPXXXdjIn":"10000","XXdPXXXdjXuX":"0","YXdXpendEXXnd":"0","GXXXeXXd":"0","XiXeXXDXXXX":"79643","PXPXXXNXXXXd":"0","XpenXXXedXnXXX":"79643","XXmXMXhXXeq":"1","XXmXDXyXXMXh":"15","XXXXXmXDX":"20231215","NexXXXmXDX":"20240115","DXXpened":"20231204","DiXXPkXPXX":"0","DiXXPkXMXnVXXPXX":"0","XuXXDiXXXXeq":"0","XuXXDiXXDXyXXMXh":"0","XXXXDiXXuXXeDX":"00000000","XuXXDiXXXhXeXhXd":"0","XuXXDiXXMXnVXX":"0","WXiveMemXXee":"N","XXXpnDX":"2023338","XeXXXeXmX":"0","XuXXNXd":"2","PeXIXemNXd":"0","PXXXXXeNXd":"7","XnXXyXd":"IND","XuXXXd":"356","NXXMXhDXXXXXuX":"1","MXnXhXyXXXhXXXkGXXup":[{"DiXXXmX":"0","DiXXMXhDX":"20231215"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"},{"DiXXXmX":"0","DiXXMXhDX":"00000000"}],"XXXXXpenXniDXXe":"20241204","XXdDiXXXXXhXXXk":"0","XXdXpendXmX":"0"}}";
ObjectMapper mapper = new ObjectMapper（）; Map <String，Object> map = mapper. readValue（data，Map.class）;
当我直接将响应从API转换为Map <String，Object>时，会发生错误
1条答案
按热度按时间cld4siwp1#
从API返回的字符串似乎有两个额外的引号，一个是开始，另一个在字符串的结尾，在堆栈跟踪中查看源属性：
[Source: (String)""{"DXX":{"NX":"XXDHX XXK ...解决这个问题的一个方法是在读取值之前删除额外的引号，就像这样：
字符串
用于重现此错误的代码：
型