Tomcat cross-origin access and tomcat cross-origin access

Tomcat cross-origin access and tomcat cross-origin access

What is cross-origin:

Simply put, the browser requests resources between several different domain names. For security reasons, the browser rejects cross-origin access by default, leading to resource acquisition failure.

Solution 1:

In tomcat.6.0.27 and later versions, there are simple solutions to cross-origin problems:

Edit context. xml in the conf directory of tomcat.

Modify the Context to the following:

<ContextsessionCookiePath = "" sessionCookieDomain = ". ×××. cn"/>

 

Solution 2:

Import cors-filter-1.7.jar, java-property-utils-1.9.jar two jar packages

Add the following in web. xml:

<! -- Implement cross-Origin -->

    <filter>        <filter-name>CORS</filter-name>        <filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>        <init-param>            <param-name>cors.allowOrigin</param-name>            <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>