仅从 Spring MVC 3 控制器返回字符串消息 [英] Return only string message from Spring MVC 3 Controller

问题描述

谁能告诉我如何从控制器返回字符串消息?

Can any one tell me how I can return string message from controller?

如果我只是从控制器方法返回一个字符串，那么 spring mvc 将其视为一个 jsp 视图名称.

If i just return a string from a controller method then spring mvc treating it as a jsp view name.

推荐答案

用 @ResponseBody 在控制器中注释你的方法:

Annotate your method in controller with @ResponseBody:

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

来自:15.3.2.6 使用@ResponseBody注解映射响应体:

From: 15.3.2.6 Mapping the response body with the @ResponseBody annotation:

@ResponseBody 注释 [...] 可以放在方法上，指示返回类型应直接写入 HTTP 响应正文(而不是放在模型中，或解释作为视图名称).

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).

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