Form Data 的 名是 profile[location]:北京 这样的，spring 方法名怎么获取

上面图片：

@RequestMapping(value="/settings", method=RequestMethod.POST, produces = "application/json;charset=UTF-8")
@ResponseBody
public String settingsJson(String user[username], String profile[location], String profile[sex], Model model, HttpSession session) {

    return null;

}

String user[username], String profile[location], String profile[sex]
这样不行，报错：Syntax error on token "username", delete this token

应该怎么写

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可以使用 Map 类型.
比如

@RequestMapping(value="/settings", method=RequestMethod.POST, produces = "application/json;charset=UTF-8")
@ResponseBody
public String settingsJson(Map<String,String> user, Map<String,String> profile, Model model, HttpSession session) {
    user.get("username");
    return null;
}

还没有测试过.

具体参考这个文档: http://docs.spring.io/spring-framework/docs/3.2.x/spring-framework-reference/html/validation.html#beans-beans-conventions 7.4.1节

祝好运.

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为什么不用@RequestParam呢，Spring是旧版本吗？