1.Controller中的业务方法的参数名称要与请求参数的name一致，参数值会自动映射匹配
（json形式）
<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.9.8</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.9.8</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>2.9.8</version></dependency>
比如下面这段代码
@RequestMapping("/report11")@ResponseBody//让springmvc将user自动转换为json格式的字符串public void save11(String username,int age){System.out.println(username);System.out.println(age);}
2.启动服务器，通过浏览器访问http://localhost:8080/report11?username=zsh&age=20
然后控制台打印
