springmvc controller中参数装配转换由于同名而不同类型而发生错误

@RequestMapping(value = "{parent}/appendChild", method = RequestMethod.POST)
public String appendChild(
Model model,
@PathVariable("parent") long pid,
@ModelAttribute("child") Resource child, BindingResult result) { ...}

报错，错误消息如下：

Failed to convert property value of type java.lang.String to required type boolean for property parent; nested exception is java.lang.IllegalArgumentException: Invalid boolean value [31]
提示是parent字段类型转换错误，原来Resource 有个parent的booean方法，请求路径中的的参数与之同名，故引发转换错误。

把url变量改成parentId就不会由于名称相同发生转换了。

@RequestMapping(value = "{parentId}/appendChild", method = RequestMethod.POST)public String appendChild(Model model,@PathVariable("parentId") long pid,@ModelAttribute("child") Resource child, BindingResult result) { ...}