Spring引导控制器不响应POST请求

Question

package com.[my-domain].[application-name].controller;

[a bunch of imports]

@RestController
@CrossOrigin
public class PrintController {
    Logger logger = LoggerFactory.getLogger(PrintController.class);

    @RequestMapping(value="/cloudprint", method=RequestMethod.POST,
            headers={"Accept=application/json"})
    @ResponseStatus(HttpStatus.CREATED)
    public @ResponseBody String printPost() { 
        logger.debug("in printPost");
        return "OK";
    }

    @RequestMapping(value="/cloudprint", method=RequestMethod.GET,
            headers={"Accept=application/json"})
    @ResponseStatus(HttpStatus.OK)
    public @ResponseBody String printGet(HttpServletRequest request) {
        logger.debug("in printGet");
        return "OK";
    }

    @RequestMapping(value="/cloudprint", method=RequestMethod.DELETE,
            headers={"Accept=application/json"})
    @ResponseStatus(HttpStatus.OK)
    public @ResponseBody String printDelete() {
        logger.debug("in printDelete");
        return "OK";
    }
}

----在2019-06-03@13:21 CET下面添加信息----因为我有一个普通的Spring（非引导）应用程序接受来自打印机的POST请求，所以我能够在传入的请求中记录信息。所以我就这么做了。

这是来自打印机的POST请求之一，Spring boot Oontroller不接受它：

auth type: null
content type: application/json
-- HEADERS --
Header: host : dev.[our-domain-name].com
Header: accept : */*
Header: user-agent : Cente HTTPc
Header: content-type : application/json
Header: content-length : 303
Header: connection : keep-alive
QueryString: null
-- PARAMETERS --
END

这是Postman向完全相同的URL发送的POST请求之一，Spring boot Oontroller接受该请求：

auth type: null
cotent type: application/json
-- HEADERS --
Header: content-type : application/json
Header: cache-control : no-cache
Header: Postman-Token : caf99fa1-4730-4193-aab3-c4874273661d
Header: user-agent : PostmanRuntime/7.6.0
Header: accept : */*
Header: host : dev.[our-domain-name].com
Header: accept-encoding : gzip, deflate
Header: content-length : 0
Header: connection : keep-alive
QueryString: null
-- PARAMETERS --
END

{"status": "29 a 0 0 0 0 0 0 0 0 0 0",
 "printerMAC": "00:11:62:1b:xx:xx",
 "statusCode": "200%20OK",
 "printingInProgress": false,
 "clientAction": null,
 "display": [
   {"name": "MainDisplay" ,
    "status": {"connected": false}}],
 "barcodeReader": [
   {"name": "MainBCR" ,
    "status": {"connected": false,"claimed": false}}]}

@RequestMapping(value="/cloudprint", method=RequestMethod.POST,
        headers={"Accept=application/json"})
@ResponseStatus(HttpStatus.CREATED)
public @ResponseBody String printPost(@RequestBody PrinterPostRequest printerPostRequest,
        HttpServletRequest request) {  
    HttpRequestLogger.log(request);
    return "OK";
}

---在2019-06-05@10:16 CET下面添加信息----我有一个主意。使用Spring RestTemplate，我向引导应用程序发送了一个POST请求，其头部和负载与打印机发送的请求相同。我得到了一个org.springframework.web.client.ResourceAccessException，其中包含以下消息：

I/O error on POST request for "https://boot.[my-domain].com:8443/cloudprint":sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target; nested exception is javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Answer 1

如果您使用Spring Boot2，那么由于CSRF保护，这种情况可能会发生。它只影响非GET请求，并且在Spring Boot2上默认打开，但在早期版本中关闭。

所以它很好地反映了你的问题--描述--尽管我不完全明白它如何通过邮递员工作...然而，它有可能以某种方式自动处理它...

无论如何，值得一试：

@EnableWebSecurity
@Configuration
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

  @Override
  protected void configure(HttpSecurity http) throws Exception {
    http.csrf().disable();
  }
}