SpringMVC中,如果前端请求,服务端响应406错误。可能是服务端没有加入Jackson的Jar包,并且使用了@ResponseBody返回数据,就会报406的错误。
还有一种可能是:web.xml中配置的拦截请求是*.html,请求返回的却是一个Json对象。SpringMVC中不允许请求*.html但却返回Json对象。解决办法就是在web.xml中配置多个拦截请求:
web.xml(配置SpringMVC多个拦截请求):
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<display-name>e3-xxx-web</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<!-- 解决post乱码 -->
<filter>
<filter-name>CharacterEncodingFilter</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>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- springmvc的前端控制器 -->
<servlet>
<servlet-name>e3-cart-web</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- contextConfigLocation不是必须的, 如果不配置contextConfigLocation, springmvc的配置文件默认在:WEB-INF/servlet的name+"-servlet.xml" -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/*.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>e3-cart-web</servlet-name>
<!-- 伪静态化 -->
<url-pattern>*.html</url-pattern> <!-- 配置SpringMVC的拦截请求 *.html。这种请求不能返回Json对象,否则会报406错误。 -->
</servlet-mapping>
<servlet-mapping>
<servlet-name>e3-cart-web</servlet-name>
<url-pattern>*.action</url-pattern> <!-- 配置SpringMVC的拦截请求(可以有多个) *.action -->
</servlet-mapping>
</web-app>