java 跨域请求解决方案('Access-Control-Allow-Origin' header is present on the requested resource. O

 

1.情景展示

java 跨域请求解决方案('Access-Control-Allow-Origin' header is present on the requested resource. O

 

  报错信息如下:

  'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access. 

 

2.原因分析

 

3.解决方案

  所需jar包:cors-filter-2.8.jar和java-property-utils-1.9.1.jar

 

 

写在最后

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