SSM服務端解決跨域問題

1.在pom.xml文件裏面引入包

<!-- 跨域過濾器相關 -->  
<dependency>  
	<groupId>com.thetransactioncompany</groupId>  
	<artifactId>java-property-utils</artifactId>  
	<version>1.9.1</version>  
</dependency>
<dependency>
	<groupId>com.thetransactioncompany</groupId>
	<artifactId>cors-filter</artifactId>
	<version>1.7.1</version>
</dependency>

2.在web.xml裏面配置過濾器

<!-- 跨域過濾器 -->
<filter>
	  <filter-name>CORS</filter-name>
	  <filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>
	  <init-param>
	   <param-name>cors.allowOrigin</param-name>   <!--配置授信的白名單的域名！ -->
	   <param-value>*</param-value>
	  </init-param>
	  <init-param>
	   <param-name>cors.supportedMethods</param-name>
	   <param-value> GET, POST, HEAD, PUT, DELETE </param-value>
	  </init-param>
	  <init-param>
	   <param-name>cors.supportedHeaders</param-name>
	   <param-value> Accept, Origin, X-Requested-With, Content-Type, Last-Modified </param-value>
	  </init-param>
	  <init-param>
	   <param-name>cors.exposedHeaders</param-name>
	   <param-value>Set-Cookie</param-value>
	  </init-param>
	  <init-param>
	   <param-name>cors.supportsCredentials</param-name>
	   <param-value>true</param-value>
	  </init-param>
</filter>
<filter-mapping>
	  <filter-name>CORS</filter-name>
	  <url-pattern>/*</url-pattern>
</filter-mapping>

最後在ajax進行傳輸的時候,在ajax之中加上這2個允許跨域。

xhrFields: { withCredentials: true },
crossDomain:true,

html中加入meta頭

<meta http-equiv="Access-Control-Allow-Origin" content="*" />