使用SpringMVC参数注解@PathVariable时出错提示:
Missing URI template variable 'employeeNumber' for method parameter of type String
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@RequestMapping(value = "/findUserByEmployeeNumber/{EmployeeNumber}",method = RequestMethod.GET)
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public ResponseEntity<TodoUser> findByNumber(@PathVariable @Valid String employeeNumber){
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...
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}
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如果@RequestMapping中表示为”item/{id}”,id和形参名称一致,@PathVariable不用指定名称。如果不一致,例如”item/{ItemId}”则需要指定名称@PathVariable(“itemId”)。
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因此原代码中的参数
@RequestMapping(value = "/findUserByEmployeeNumber/{EmployeeNumber}
中{EmployeeNumber}变量名需要和@PathVariable @Valid String employeeNumber
中一样
修改后:
- 方法一:参数名一致
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@RequestMapping(value = "/findUserByEmployeeNumber/{employeeNumber}",method = RequestMethod.GET)
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public ResponseEntity<TodoUser> findByNumber(@PathVariable @Valid String employeeNumber){
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...
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}
- 方法二:添加别名
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@RequestMapping(value = "/findUserByEmployeeNumber/{employeeNumber}",method = RequestMethod.GET)
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public ResponseEntity<TodoUser> findByNumber(@PathVariable("employeeNumber") @Valid String Number){
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...
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}
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注意两个区别
- @PathVariable是获取url上数据的。
- @RequestParam获取请求参数的(包括post表单提交)
转载地址:https://blog.youkuaiyun.com/xhyxxx/article/details/76111196