java - Spring Rest 服务调用在第 1 行第 1 列 : Document is empty 返回错误

Question

我写了一个 REST 调用，它会在调用时返回健康状态

 @RestController
@RequestMapping(value = "/account")
public class HealthCheckController {

    protected final Logger log = LoggerFactory.getLogger(this.getClass());

    @RequestMapping(value = "/health", method = RequestMethod.GET, produces = { "application/json" })
    @ResponseStatus(HttpStatus.OK)
    @ApiOperation(value = "Returns the health status of the application", notes = "Load balancer user this to confirm the health of the node")
    public @ResponseBody String getHealth(HttpServletRequest request, HttpServletResponse response) throws Exception {

        log.info("***" + RequestCorrelation.getId() + "***" + "HealthCheckController - getHealth () Called");

        return "{\"health\":{\"SERVICES\":\"OK\"}}";
    }

}

当我大摇大摆或 postman 打开它时，它会返回正确的响应。但是当我在 chrome 浏览器中点击这个 URL 时，我看到了

This page contains the following errors:

error on line 1 at column 1: Document is empty
Below is a rendering of the page up to the first error.

为什么会这样？以及如何解决这个问题？

Answer 1

同样的问题。拥有一个具有以下类注释和方法的对象:

@Consumes({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})@Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})

@GET
@Path("version")
public String getVersion() { return "v1"; }

将 MediaType.TEXT_PLAIN 添加到 @Produces 注释的末尾。没用。将其移至 @Produces 注释的开头。没用。

将它移动/添加到方法中为我解决了这个问题。您的客户也需要能够接受该媒体类型。

@GET
@Path("version")
@Produces({MediaType.TEXT_PLAIN})
public String getVersion() { return "v1"; )

HTH