java - 我的 PathVariables 不起作用

Question

您好，我想用 Spring Rest 编写一个 Get 方法，但我的代码不起作用，代码如下；

@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，但您的网址映射没有参数。您可以像这样修复

@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 url 映射，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);
}