將物件寫入json時如何保持鍵的原始大小寫？
POJO 級：
public class LeadRequest
{
private String AccountName;
private String AccountAlias;
private String BPID;
private String CustomerType;
private String Email;
private String LocationType;
private String APRID;
private String APRDistributorName;
private String EngagedwithRAOrDistributor;
public String getBPID()
{
return BPID;
}
public void setBPID(final String bPID)
{
BPID = bPID;
}
public String getEngagedwithRAOrDistributor()
{
return EngagedwithRAOrDistributor;
}
public void setEngagedwithRAOrDistributor(final String engagedwithRAOrDistributor)
{
EngagedwithRAOrDistributor = engagedwithRAOrDistributor;
}
}
服務等級：
public void submitLeadRequest(final LeadRequest lead)
{
try
{
final String endPoint = Config.getParameter(ServicesConstants.API_URL);
final HttpPost request = new HttpPost(endPoint);
request.addHeader(ServicesConstants.CONTENT_TYPE, ServicesConstants.APPLICATION_JSON);
request.addHeader(ServicesConstants.CLIENT_ID, Config.getParameter(ServicesConstants.CLIENT_ID));
request.addHeader(ServicesConstants.CLIENT_SECRET, Config.getParameter(ServicesConstants.CLIENT_SECRET));
final ObjectMapper mapper = new ObjectMapper();
final String jsonInString = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(lead);
final StringEntity entity = new StringEntity(jsonString);
request.setEntity(entity);
final RequestConfig requestConfig = getRequestConfig(API_TIMEOUT_LONG);
final CloseableHttpClient client = HttpClientBuilder.create().setDefaultRequestConfig(requestConfig).build();
CloseableHttpResponse response = client.execute(request);
}
}
目前生成的 Post Request json 是：
{
"accountAlias" : "No Account Alias",
"accountName" : "REI AUTOMATION INC",
"customerType" : "OEM",
"aprid" : "002",
"bpid" : "0099105850",
"locationType" : "Research & Development",
"email" : "[email protected]",
"engagedwithRAOrDistributor" : "",
"aprdistributorName" : "002-CED Royal Industrial Elec"
}
但是由于請求 json 中用于被呼叫的系統的區分大小寫的鍵，post 請求未能給出 HTTP/1.1 500 Server Error
因此，所需的 Request Json 是：
uj5u.com熱心網友回復：
如果您正在使用，您可以使用例如以下com.fasterxml.jackson.databind.ObjectMapper方法為每個欄位指定最終名稱：com.fasterxml.jackson.annotation.JsonProperty
@JsonProperty("AccountName")
private String AccountName;
或者你可以“告訴”你的映射器使用欄位而不是 getter 來創建最終的 JSON。為此，您可以按如下方式配置您的映射器類：
mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
mapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
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