注解开发示例

一：
@Controller
@RequestMapping("ljl")
public class HelloCotroller {
    @RequestMapping("first")
    public String doFirst() {
        return "/index.jsp";
    }

    @RequestMapping("second")
    public String doSecond() {
        return "/insert.jsp";
    }

    @RequestMapping(value = "/*three")
    public String doThree() {
        return "/insert.jsp";
    }

    @RequestMapping(value = "/four*")
    public String doFour() {
        return "/insert.jsp";
    }

    @RequestMapping(value = "/**/five")
    public String doFive() {
        return "/insert.jsp";
    }
}

二： 
@Controller
public class ParamController {
    @RequestMapping("/one")
    public String doOne(String uname) {
        System.out.println(uname);
        return "/index.jsp";
    }

    @RequestMapping("/two")
    public String doTwo(UserInfo info) {
        System.out.println(info.getUname());
        return "/index.jsp";
    }

    /*域属性*/
    @RequestMapping("/three")
    public String doThree(UserInfo info) {
        System.out.println("用户名：" + info.getUname() + "\t" + "图书名称：" + info.getBook().getBookname());
        return "/index.jsp";
    }

    /*集合*/
    @RequestMapping("/six")
    public String doSix(UserInfo info) {
        System.out.println("用户名：" + info.getUname() + "\t" + "图书名称：" + info.getList().get(1).getBookname());
        return "/index.jsp";
    }

    /*url*/
    @RequestMapping(value = "/{uname}/{age}/sever")
    public String doSever(@PathVariable("uname") String uname, @PathVariable String age) {
        System.out.println(uname);
        System.out.println(age);
        return "/index.jsp";
    }
页面：
<h2>Login</h2>
<form action="six" method="post">
    用户名：<input name="uname"/>
    图书名称1：<input name="list[0].bookname"/>
    图书名称2：<input name="list[1].bookname"/>
    <input type="submit"/>
</form>