Spring mvc中@RequestMapping 6个基本用法小结
2015-07-25 15:56
489 查看
Spring mvc中@RequestMapping 6个基本用法小结
小结下spring mvc中的@RequestMapping的用法。1)最基本的,方法级别上应用,例如:
Java代码
![](https://oscdn.geek-share.com/Uploads/Images/Content/201506/c3f713bc49f7d3c749d0ee3bca7960fe.png)
@RequestMapping(value="/departments")
public String simplePattern(){
System.out.println("simplePattern method was called");
return "someResult";
}
则访问http://localhost/xxxx/departments的时候,会调用 simplePattern方法了
2) 参数绑定
Java代码
![](https://oscdn.geek-share.com/Uploads/Images/Content/201506/c3f713bc49f7d3c749d0ee3bca7960fe.png)
@RequestMapping(value="/departments")
public String findDepatment(
@RequestParam("departmentId") String departmentId){
System.out.println("Find department with ID: " + departmentId);
return "someResult";
}
形如这样的访问形式:
/departments?departmentId=23就可以触发访问findDepatment方法了
3 REST风格的参数
Java代码
![](https://oscdn.geek-share.com/Uploads/Images/Content/201506/c3f713bc49f7d3c749d0ee3bca7960fe.png)
@RequestMapping(value="/departments/{departmentId}")
public String findDepatment(@PathVariable String departmentId){
System.out.println("Find department with ID: " + departmentId);
return "someResult";
}
形如REST风格的地址访问,比如:
/departments/23,其中用(@PathVariable接收rest风格的参数
4 REST风格的参数绑定形式之2
先看例子,这个有点象之前的:
Java代码
![](https://oscdn.geek-share.com/Uploads/Images/Content/201506/c3f713bc49f7d3c749d0ee3bca7960fe.png)
@RequestMapping(value="/departments/{departmentId}")
public String findDepatmentAlternative(
@PathVariable("departmentId") String someDepartmentId){
System.out.println("Find department with ID: " + someDepartmentId);
return "someResult";
}
这个有点不同,就是接收形如/departments/23的URL访问,把23作为传入的departmetnId,,但是在实际的方法findDepatmentAlternative中,使用
@PathVariable("departmentId") String someDepartmentId,将其绑定为
someDepartmentId,所以这里someDepartmentId为23
5 url中同时绑定多个id
Java代码
![](https://oscdn.geek-share.com/Uploads/Images/Content/201506/c3f713bc49f7d3c749d0ee3bca7960fe.png)
@RequestMapping(value="/departments/{departmentId}/employees/{employeeId}")
public String findEmployee(
@PathVariable String departmentId,
@PathVariable String employeeId){
System.out.println("Find employee with ID: " + employeeId +
" from department: " + departmentId);
return "someResult";
}
这个其实也比较好理解了。
6 支持正则表达式
Java代码
![](https://oscdn.geek-share.com/Uploads/Images/Content/201506/c3f713bc49f7d3c749d0ee3bca7960fe.png)
@RequestMapping(value="/{textualPart:[a-z-]+}.{numericPart:[\\d]+}")
public String regularExpression(
@PathVariable String textualPart,
@PathVariable String numericPart){
System.out.println("Textual part: " + textualPart +
", numeric part: " + numericPart);
return "someResult";
}
比如如下的URL:/sometext.123,则输出:
Textual part: sometext, numeric part: 123.
相关文章推荐
- object c中 new和alloc区别
- Android Studio 常用快捷键
- cocos2d-xUI编译器导出的json,程序中怎么读取?遇到自定义字体UILabelBMFont,怎么在程序中修改他的值?怎么将json再次导入编译器中?
- android观察者设计模式 下载进度同步显示
- Android DownloadManager 的使用
- iOS- 利用AFNetworking(AFN) - 实现文件上传
- Android Log及其参数的使用
- 噩梦射手5 移动 转向 这个没有加速的过程 不适合rpg人物 把移动检测去掉
- 那不勒斯中文离线地图App上线
- android用ViewPager实现欢迎界面
- iOS笔试题目
- Android 服务器之SFTP服务器上传下载功能
- Android Recycler View Header Footer 下拉刷新,自动加载更多,空view,loading view
- android5.0学习(一)
- webview 之间的传值
- iOS重新设置首界面不能启动问题的解决方法
- 米兰中文离线地图App上线
- android sdk manager设置国内镜像快速下载sdk
- 墨西拿中文离线地图App上线
- 热那亚中文离线地图App上线