继续整理,这个是前段时间用jsp开发的一个站点,说起来php程序员去做jsp程序确实有些小不适应,但是弄完后绝对对于这种强类型语言而比收获还是颇多的。
1,最基本的,方法级别上应用@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 @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 @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: @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 @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 @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.
原标题:Spring mvc中@RequestMapping 6个基本用法整理
关键词:Spring