Question

你好，我想用Spring Rest编写一个Get方法，但是下面的代码不起作用；

@RequestMapping(value = "userRight/hasRightForOperation", method = RequestMethod.GET, consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<?> hasRightForOperation(@PathVariable(value = "loginName") String loginName,
            @PathVariable(value = "vendorId") String vendorId,
            @PathVariable(value = "accessRightCode") String accessRightCode) {
        return new ResponseEntity<>(hasRightForOperation(loginName, vendorId, accessRightCode), HttpStatus.OK);

提前谢谢

Answer 1

@RequestMapping(value = "userRight/hasRightForOperation", method = RequestMethod.GET, consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<?> hasRightForOperation(@PathVariable(value = "loginName") String loginName,
        @PathVariable(value = "vendorId") String vendorId,
        @PathVariable(value = "accessRightCode") String accessRightCode) {
    return new ResponseEntity<>(hasRightForOperation(loginName, vendorId, accessRightCode), HttpStatus.OK);

您正在使用@PathVariable，但是您的网址映射没有参数。您可以像

一样进行修复

@RequestMapping(value = "userRight/hasRightForOperation/{loginName}/{vendorId}/{accessRightCode}", method = RequestMethod.GET, consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<?> hasRightForOperation(@PathVariable(value = "loginName") String loginName,
        @PathVariable(value = "vendorId") String vendorId,
        @PathVariable(value = "accessRightCode") String accessRightCode) {
    return new ResponseEntity<>(hasRightForOperation(loginName, vendorId, accessRightCode), HttpStatus.OK);

您可以更改url映射参数的顺序。因此，如果您不想进行网址映射，则可以使用@RequestParam标签获取参数。

@GetMapping(value = "userRight/hasRightForOperation", consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<?> hasRightForOperation(@RequestParam("loginName") String loginName,
                                              @RequestParam("vendorId") String vendorId,
                                              @RequestParam("accessRightCode") String accessRightCode) {
    return new ResponseEntity<>(hasRightForOperation(loginName, vendorId, accessRightCode), HttpStatus.OK);
}

Answer 2

您必须在URL中接收路径变量，以便添加如下所示的所有参数。

更改

@RequestMapping(value = "userRight/hasRightForOperation", method = RequestMethod.GET, consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)

到

@RequestMapping(value = "userRight/hasRightForOperation/{loginName}/{vendorId}/{accessRightCode}", method = RequestMethod.GET, consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)

我建议您为此使用@RequestParam。

请参见：@RequestParam vs @PathVariable

我的PathVariables无效

2 个答案: