一,在web.xml配置 post请求方式
<filter><description>字符编码过滤器</description>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
2、对于get请求,在tomcat的server.xml配置文件中配置:
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
添加URIEncoding="utf-8"
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" URIEncoding="utf-8"/>
如果不改变tomcat里的配置,比如用maven,则需要用produces
produces可能不算一个注解,因为什么呢,它是注解@requestMapping注解里面的属性项,
它的作用是指定返回值类型,不但可以设置返回值类型还可以设定返回值的字符编码;
还有一个属性与其对应,就是consumes: 指定处理请求的提交内容类型(Content-Type),例如application/json, text/html;
他们的使用方法如下:
一、produces的例子
produces第一种使用,返回json数据,下边的代码可以省略produces属性,因为我们已经使用了注解@responseBody就是返回值是json数据:
@Controller
@RequestMapping(value = "/pets/{petId}", method = RequestMethod.GET, produces="application/json")
@ResponseBody
public Pet getPet(@PathVariable String petId, Model model) {
implementation omitted
}
produces第二种使用,返回json数据的字符编码为utf-8.:
@Controller
@RequestMapping(value = "/pets/{petId}", produces="MediaType.APPLICATION_JSON_VALUE"+";charset=utf-8")
@ResponseBody
public Pet getPet(@PathVariable String petId, Model model) {
implementation omitted
}
二、consumes的例子(方法仅处理request Content-Type为“application/json”类型的请求。)
@Controller
@RequestMapping(value = "/pets", method = RequestMethod.POST, consumes="application/json")
public void addPet(@RequestBody Pet pet, Model model) {
// implementation omitted
}