我正在尝试将JSON数组发送到我的服务器。我的JSON数组看起来像这样
["{"sourceAccountNo":"555555555555555","sourceBankCode":"GLBBNPKA","destinationBankCode":"GLBBNPKA","destinationBankAccountNo":"123456789111111","amount":5000,"narrationOne":"txn4 by maker 1","uniqueId":"ESW-COR:1405507591784"}"]
相应的服务器端方法是：
@ResponseBody
@ResponseStatus(value = HttpStatus.OK)
@RequestMapping(value = "/xxx", method = RequestMethod.POST)
public ResponseEntity<BulkCorporatePaymentResponse> xxx(@RequestBody BulkCorporatePaymentRequest corporatePaymentRequestList) {
BulkCorporatePaymentResponse response = null;
try {
response = corporateApi.processBulkFundTransfer(corporatePaymentRequestList);
} catch (Exception e) {
}
return new ResponseEntity<BulkCorporatePaymentResponse>(response, HttpStatus.OK);
}
现在我的BulkCorporatePaymentResponse和BulkCorporatePaymentRequest看起来像这样
public class BulkCorporatePaymentResponse implements Serializable {
private static final long serialVersionUID = -2026566288888889L;
List<CorporatePaymentResponse> paymentResponseList;
public List<CorporatePaymentResponse> getPaymentResponseList() {
return paymentResponseList;
}
public void setPaymentResponseList(List<CorporatePaymentResponse> paymentResponseList) {
this.paymentResponseList = paymentResponseList;
}
}
public class BulkCorporatePaymentRequest implements Serializable {
private static final long serialVersionUID = -202656628880099889L;
private List<CorporatePaymentRequest> paymentRequestlist;
public List<CorporatePaymentRequest> getPaymentRequestlist() {
return paymentRequestlist;
}
public void setPaymentRequestlist(List<CorporatePaymentRequest> paymentRequestlist) {
this.paymentRequestlist = paymentRequestlist;
}
}
我的CorporatePaymentRequest看起来很喜欢这个
public class CorporatePaymentRequest implements Serializable {
private static final long serialVersionUID = 1346864799470440670L;
private String sourceAccountNo;
private String sourceBankCode;
private String destinationBankCode;
private String destinationBankAccountNo;
private String corporateName;
private double amount;
private String remarks;
private String narrationOne;
private String narrationTwo;
private String uniqueId;
public String getSourceAccountNo() {
return sourceAccountNo;
}
public void setSourceAccountNo(String sourceAccountNo) {
this.sourceAccountNo = sourceAccountNo;
}
public String getSourceBankCode() {
return sourceBankCode;
}
public void setSourceBankCode(String sourceBankCode) {
this.sourceBankCode = sourceBankCode;
}
public String getDestinationBankCode() {
return destinationBankCode;
}
public void setDestinationBankCode(String destinationBankCode) {
this.destinationBankCode = destinationBankCode;
}
public String getDestinationBankAccountNo() {
return destinationBankAccountNo;
}
public void setDestinationBankAccountNo(String destinationBankAccountNo) {
this.destinationBankAccountNo = destinationBankAccountNo;
}
public String getCorporateName() {
return corporateName;
}
public void setCorporateName(String corporateName) {
this.corporateName = corporateName;
}
public double getAmount() {
return amount;
}
public void setAmount(double amount) {
this.amount = amount;
}
public String getRemarks() {
return remarks;
}
public void setRemarks(String remarks) {
this.remarks = remarks;
}
public String getNarrationOne() {
return narrationOne;
}
public void setNarrationOne(String narrationOne) {
this.narrationOne = narrationOne;
}
public String getNarrationTwo() {
return narrationTwo;
}
public void setNarrationTwo(String narrationTwo) {
this.narrationTwo = narrationTwo;
}
public String getUniqueId() {
return uniqueId;
}
public void setUniqueId(String uniqueId) {
this.uniqueId = uniqueId;
}
}
每当我尝试将上面提到的json数组传递给我的服务器时，我得到以下异常
Jul 22, 2014 4:53:38 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [esewarest] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: Could not read JSON: Can not deserialize instance of com.esewa.server.corporate.schema.BulkCorporatePaymentRequest out of START_ARRAY token
at [Source: org.apache.catalina.connector.CoyoteInputStream@72ced13f; line: 1, column: 1]; nested exception is org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of com.esewa.server.corporate.schema.BulkCorporatePaymentRequest out of START_ARRAY token
at [Source: org.apache.catalina.connector.CoyoteInputStream@72ced13f; line: 1, column: 1]] with root cause
org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of com.esewa.server.corporate.schema.BulkCorporatePaymentRequest out of START_ARRAY token
at [Source: org.apache.catalina.connector.CoyoteInputStream@72ced13f; line: 1, column: 1]
at org.codehaus.jackson.map.JsonMappingException.from(JsonMappingException.java:163)
at org.codehaus.jackson.map.deser.StdDeserializationContext.mappingException(StdDeserializationContext.java:219)
at org.codehaus.jackson.map.deser.StdDeserializationContext.mappingException(StdDeserializationContext.java:212)
at org.codehaus.jackson.map.deser.BeanDeserializer.deserializeFromArray(BeanDeserializer.java:869)
at org.codehaus.jackson.map.deser.BeanDeserializer.deserialize(BeanDeserializer.java:597)
at org.codehaus.jackson.map.ObjectMapper._readMapAndClose(ObjectMapper.java:2725)
at org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1916)
at org.springframework.http.converter.json.MappingJacksonHttpMessageConverter.readInternal(MappingJacksonHttpMessageConverter.java:122)
at org.springframework.http.converter.AbstractHttpMessageConverter.read(AbstractHttpMessageConverter.java:153)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.readWithMessageConverters(HandlerMethodInvoker.java:641)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveRequestBody(HandlerMethodInvoker.java:605)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveHandlerArguments(HandlerMethodInvoker.java:354)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:171)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:206)
at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:179)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:101)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:139)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:125)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.esewa.server.web.filter.GWTCacheControlFilter.doFilter(GWTCacheControlFilter.java:36)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1001)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
任何建议都会有很大的帮助。
编辑更新（Mona Jalal）：在旁注中，我将raspi IP发布到Postman并点击发送按钮时出现此错误：
144.92.129.230:8080/api/devices
{
"timestamp": 1457494478717,
"status": 400,
"error": "Bad Request",
"exception": "org.springframework.http.converter.HttpMessageNotReadableException",
"message": "Required request body content is missing: org.springframework.web.method.HandlerMethod$HandlerMethodParameter@53cb13b3",
"path": "/api/devices"
}
答案 0 :(得分：4)
显然，JSON解析器无法解析您的JSON。 尝试在http://jsonlint.com/验证JSON以查看问题所在。
正如其他人所提到的，你在初始方括号内有一组多余的引号。
您必须删除这些。如果转换仍然不起作用，您可能在将JSON映射到对象时遇到其他问题，但不要混淆这两个问题并将引号放回去 - 您将无法使用该方法 - 您需要有效的JSON首先，您可以确保可以将有效的JSON反序列化为预期的对象。
也许JSON反序列化的单元测试是按顺序进行的？