spring boot 创建 restcontroller,返回json数据
1. 新建package和HelloController
2. 编写Rest风格的HelloController代码,@RestController注解的作用:代替@Controller和@ResponseBody两个注解。默认返回 json
@RestController @RequestMapping("/hello") public class HelloController { @RequestMapping(value = "/sayHello", method = RequestMethod.GET) public String hello() { return "hello"; } }
3. 运行项目,打开浏览器查看:localhost:8080/hello/sayHello