乱码的解决
通过过滤器解决乱码问题:CharacterEncodingFilter
配置web.xml文件
<filter>
<filter-name>encoding</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encoding</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
运行结果:
这种方法主要解决的是表单post方法提交的数据,如果是get方法提交的数据,可以:
a) 修改tamcat配置
b) 自定义乱码过滤器
restful风格,优点:轻量级,安全,效率高
案例一:
@RequestMapping("/hello/{username}")
public String hello(@PathVariable("username") String uname,ModelMap mm){
System.out.println(uname);
mm.addAttribute("msg", uname); return "success";
}
效果显示:
案例二:
@Controller
@RequestMapping("/hello3/{id}")
public class HelloController2 {
@RequestMapping(params="method=add",method=RequestMethod.GET)
public String add(@PathVariable("id") int id){
System.out.println("add");
System.out.println(id);
return "success";
}
}
效果显示: