Sprint Rest内容类型＆＃39; application / json; charset = UTF-8＆＃39;不支持

Question

从Java服务调用Controller我有这个问题

  

org.springframework.web.HttpMediaTypeNotSupportedException：Content   type＆＃39; application / json; charset = UTF-8＆＃39;不支持

我不明白我的Java代码有什么问题

String url3 = "http://localhost:8889/galian/S/S/S/claimsWS/getContract1";
ContractDto contractDto = new ContractDto("Test", "20161111", "idTest");
RestTemplate restTemplate3 = null;
try {
    restTemplate3 = getRestTemplate(new URI(url3));
}
catch (URISyntaxException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
HttpHeaders headers = new HttpHeaders();
//headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<ContractDto> requestEntity = new HttpEntity<ContractDto>(contractDto, headers);
restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
Object responseEntity = restTemplate3.postForObject(url3, requestEntity, Object.class);
Map<String, Object> responseObject3 = restTemplate.postForObject(url3, contractDto, Map.class);

DTO

public class ContractDto implements Serializable {
    private static final long serialVersionUID = -7597862463769066562L;

    protected String contractId;
    protected String claimDate;
    protected String insuredObjectIdentifier;

    public ContractDto() {
    }

    public ContractDto(String contractId, String claimDate, String insuredObjectIdentifier) {
        this.contractId = contractId;
        this.claimDate = claimDate;
        this.insuredObjectIdentifier = insuredObjectIdentifier;
    }

    public String getContractId() {
        return contractId;
    }

    public void setContractId(String contractId) {
        this.contractId = contractId;
    }

    public String getClaimDate() {
        return claimDate;
    }

    public void setClaimDate(String claimDate) {
        this.claimDate = claimDate;
    }

    public String getInsuredObjectIdentifier() {
        return insuredObjectIdentifier;
    }

    public void setInsuredObjectIdentifier(String insuredObjectIdentifier) {
        this.insuredObjectIdentifier = insuredObjectIdentifier;
    }

}

控制器

@Controller
@Lazy
@RequestMapping("/claimsWS")
@Transactional
public class ClaimsController {
...
 @RequestMapping(value = "/getContract1", method = RequestMethod.POST)
    public void getContract1(@RequestBody ClaimContractCriteriaDto contractCriteriaDto, HttpServletResponse response) throws IOException {
        ....
        writeResult(response, contratBean);
    }