@PathVariable怎么写

@PathVariable可以通过在@RequestMapping注解中使用{ }占位符来标识URL中的变量部分，并将其绑定到控制器处理方法的入参上。例如，在控制器处理方法中使用@PathVariable("变量名")来获取@RequestMapping中{ }传递过来的值，并将其绑定到方法的参数上。例如：

@GetMapping("/user/{name}")
public String getUsername(@PathVariable("name") String username) {
    return username;
}

在上面的例子中，当请求路径为"/user/tom"时，@PathVariable会将"tom"绑定到方法的username参数上，并返回"tom"作为结果。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [Spring Boot中@PathVariable、@RequestParam和@RequestBody的区别和使用](https://blog.csdn.net/qq_44128703/article/details/125250484)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
- *2* [@PathVariable注解说明及其用法](https://blog.csdn.net/qq_41451744/article/details/125765587)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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