@RequestMapping(value = "/api/component/imgconf/getimgconf",method = {RequestMethod.POST, RequestMethod.GET})
@ResponseBody
public Object getImgConf(HttpServletRequest request,
	@RequestParam(value = "downImageConfigRequest", required = true) String json){
	//此处省略很多代码
}

这样终端发起请求的时候可以用post也可以用get。get的可以这样请求/api/component/imgconf/getimgconf.do?json="参数值"

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spring mvc 同时支持get和post请求