1.RESTful
a.定义:一种软件架构风格,设计风格而不是标准,只是提供了一组设计原则和约束条件。它主要用于客户端和服务器交互类的软件。基于这个风格设计的软件可以更简洁,更有层次,更易于实现缓存等机制。
b.四种方式:
GET:/blog/1 HTTP GET => 得到id=1的blog 一般用于读取
DELETE:/blog/1 HTTP DELETE => 删除id=1的blog 用于删除
PUT:/blog/1 HTTP PUT => 更新id=1的blog 用于更新
POST:/blog HTTP POST => 新增BLOG 用于增删改
2.使用步骤
a.将myRest中jar包考入
b.在web.xml中配置
<servlet-mapping>
<servlet-name>myRest</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
c.在mySpring-servlet.xml中配置
<mvc:annotation-driven />
<mvc:resources mapping="/img/**" location="/img/" />
<mvc:resources mapping="/js/**" location="/js/" />
<mvc:resources mapping="/css/**" location="/css/" />
<mvc:resources mapping="/html/**" location="/html/" />
<mvc:default-servlet-handler />
以及
<bean id="myResourceHandler" name="myResourceHandler"
class="org.springframework.web.servlet.resource.ResourceHttpRequestHandler">
<property name="locations" value="/" />
<property name="supportedMethods">
<list>
<value>GET</value>
<value>DELETE</value>
<value>PUT</value>
<value>POST</value>
</list>
</property>
</bean>
d.建SqlMapConfig.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<typeAliases>
<package name="com.wode.bean"/>
</typeAliases>
</configuration>
e.在html中
$("button").bind("click",function(){
$.ajax({
type: "put",
url: "../user/update/13",
data: {name:"zhangsan",location:"chengdu"},
success: function(msg){
alert( "Data Saved: " + msg );
}
});
})
f.Controller中书写
@RequestMapping("/user")
public class HelloController {
// http://127.0.0.1:8080/myRestFul/user/update/3
@RequestMapping(path="/update/{id}",method=RequestMethod.PUT)
public void upUser(@PathVariable("id")int id,String name,String location,PrintWriter pt){
//用户的修改
System.out.println("用户执行了更新"+id+" "+name+" "+location);
pt.println("hello world");
}
}
g.注意:put方式还需在web.xml中配置
<filter>
<filter-name>httpPutFormFilter</filter-name>
<filter-class>org.springframework.web.filter.HttpPutFormContentFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>httpPutFormFilter</filter-name>
<servlet-name>myRest</servlet-name>
</filter-mapping>