POST请求转换为PUT或者Delete请求、处理post请求乱码的过滤器、Get请求乱码

在web.xml中配置

<!--配置HiddenHttpMethodFilter ： 将所有的POST请求转换为PUT或者Delete请求 -->
<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>

<!-- 处理post请求乱码的过滤器 -->
<filter>
  <filter-name>CharacterEncodingFilter</filter-name>
  <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  <!-- 指定编码格式 -->
  <init-param>
    <param-name>encoding</param-name>
    <param-value>UTF-8</param-value>
  </init-param>
</filter>
<filter-mapping>
  <filter-name>CharacterEncodingFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

Get请求乱码：