SpringMVC学习01
ant风格url
spring官方解释
/**
* In a Servlet environment only: the path mapping URIs (e.g. "/myPath.do").
* Ant-style path patterns are also supported (e.g. "/myPath/*.do").
* At the method level, relative paths (e.g. "edit.do") are supported within
* the primary mapping expressed at the type level. Path mapping URIs may
* contain placeholders (e.g. "/${connect}")
* <p><b>Supported at the type level as well as at the method level!</b>
* When used at the type level, all method-level mappings inherit
* this primary mapping, narrowing it for a specific handler method.
* @see org.springframework.web.bind.annotation.ValueConstants#DEFAULT_NONE
* @since 4.2
*/
/**
* ? 匹配一个字符
* * 匹配任意多个字符或者一层路径
* ** 多层路径
*
* @return
*/
@RequestMapping("/antTest0?")
public String antTest01() {
return "";
}
路径占位符
@RequestMapping("/user/{id}")
public String antTest01(@PathVariable("id")String id) {
return "";
}
REST风格-重点
Resources Respresentation ** State Transfre 资源表现层状态转化
操作步骤: 1. web.xml加入HiddenHttpMethodFilter web.xml
<filter>
<filter-name>hiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>hiddenHttpMethodFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
-
Controller注解指定请求类型 BookController.java
@Controller public class BookController { @RequestMapping(value = "/book", method = RequestMethod.POST) public String addBook() { System.out.println("新增了图书"); return "success"; } @RequestMapping(value = "/book/{bid}", method = RequestMethod.DELETE) public String deleteBook(@PathVariable("bid") Integer id) { System.out.println("删除了" +id+"图书"); return "success"; } @RequestMapping(value = "/book/{bid}", method = RequestMethod.GET) public String getBook(@PathVariable("bid") Integer id) { System.out.println("查询到"+id+"图书"); return "success"; } @RequestMapping(value = "/book/{bid}", method = RequestMethod.PUT) public String updateBook(@PathVariable("bid") Integer id) { System.out.println("修改" +id+"图书"); return "success"; } }
-
页面指定_method index.jsp
```html
```
问题:在高版本tomcat上,会不支持put,和delete请求
解决方式:
1.加入 @ResponseBody 注解。
2.请求先转给一个Controller,再返回jsp页面。
3.tomcat换到7.0以及以下版本。