adh*_*ock 3 java spring java-8
我已经创建了一个宁静的Web服务,并且尝试发送上述课程的发帖请求
public class A {
Duration availTime;
}
public class MyRest {
@RequestMapping(value = "/test", method = RequestMethod.POST)
public Response<?> test(@RequestBody A ta) {
return new ResponseEntity<>(HttpStatus.OK);`
}
}
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原始请求主体
{
"availTime": {
"seconds": 5400,
"nano": 0,
"units": [
"SECONDS",
"NANOS"
]
}
}
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预期的json结果
{"availTime": "PT1H30M"}
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我收到了以上错误:无法读取HTTP消息:
org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Unexpected token (START_OBJECT),
expected one of [VALUE_STRING, VALUE_NUMBER_INT, VALUE_NUMBER_FLOAT] for java.time.Duration value; nested exception is
com.fasterxml.jackson.databind.exc.MismatchedInputException: Unexpected token (START_OBJECT), expected one of [VALUE_STRING, VALUE_NUMBER_INT, VALUE_NUMBER_FLOAT] for java.time.Duration value
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作为例外,java.time.Duration只能从或创建int,但您要提供Json对象。floatstring
将您的Duration类定义为
public class Duration {
private long seconds;
private long nano;
private List<String> units;
// setters / getters
}
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现在您的请求将根据课程进行映射 A
编辑1
如果仍然要映射到java.time.Duration,则需要更改请求正文。
案例1(int)
请求正文
{“ availTime”:5400}
输出量
{“ availTime”:“ PT1H30M”}
案例2(浮动)
请求正文
{“ availTime”:5400.00}
输出量
{“ availTime”:“ PT1H30M”}
情况3(字串)
请求正文
{“ availTime”:“ PT5400S”}
输出量
{“ availTime”:“ PT1H30M”}
对于上述所有三种情况,添加依赖项
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
<version>2.8.8</version>
</dependency>
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A类应修改为
public class A {
private Duration availTime;
// for json output of duration as string
@JsonFormat(shape = Shape.STRING)
public Duration getAvailTime() {
return availTime;
}
public void setAvailTime(Duration availTime) {
this.availTime = availTime;
}
}
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将请求正文打印为json
ObjectMapper mapper = new ObjectMapper();
mapper.findAndRegisterModules();
System.out.println(mapper.writeValueAsString(ta));
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如果仍然要映射现有的请求主体,则需要为Duration类编写自定义反序列化器。
希望能帮助到你。
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