Question

我有以下代码以String和Object的形式获取响应

try (CloseableHttpClient httpClient = getHttpClient();
   CloseableHttpResponse response = httpClient.execute(target, post)) {
   String responseString = EntityUtils.toString(response.getEntity());
   ResponseVO responseVO = new ObjectMapper().readValue(responseString, ResponseVO.class);

它适用于特定的URL，更改URL后，出现以下错误（得到空响应）：

com.fasterxml.jackson.databind.JsonMappingException: No content to map due to end-of-input
 at [Source: ; line: 1, column: 0]
        at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:255)
        at com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:3851)
        at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3792)
        at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2797)

我的回应VO：

@JsonIgnoreProperties(ignoreUnknown = true)
public class ResponseVO {
    @JsonProperty("isBlocked")
    private boolean blocked;
    private String responseId;
    //getters and setters

我需要在responseString上添加支票吗？仅检查不为空？无效的回应呢？可以/应该在发生错误时创建一个空对象吗？

其他answers与我的情况无关

更改URL时获取JsonMappingException：由于输入结束，没有要映射的内容

0 个答案: