java - 仅从 Spring MVC 3 Controller 返回字符串消息

Question

谁能告诉我如何从 Controller 返回字符串消息？

如果我只是从 Controller 方法返回一个字符串，那么 spring mvc 将其视为 jsp View 名称。

Answer 1

使用 @ResponseBody 在 Controller 中注释您的方法:

@RequestMapping(value="/controller", method=GET)
@ResponseBody
public String foo() {
    return "Response!";
}

发件人:15.3.2.6 Mapping the response body with the @ResponseBody annotation :

The @ResponseBody annotation [...] can be put on a method and indicates that the return type should be written straight to the HTTP response body (and not placed in a Model, or interpreted as a view name).