JSF fileUpload 标签使用

在web.xml中加入

<context-param>

<param-name>javax.faces.STATE_SAVING_METHOD</param-name>

<param-value>server</param-value>

</context-param>

<filter>

<filter-name>PrimeFaces FileUpload Filter</filter-name>

<filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>

</filter>

<filter-mapping>

<filter-name>PrimeFaces FileUpload Filter</filter-name>

<servlet-name>Faces Servlet</servlet-name>

</filter-mapping>

再加点文件上传jar包：

<dependency>

<groupId>commons-fileupload</groupId>

<artifactId>commons-fileupload</artifactId>

<version>1.2.1</version>

<scope>compile</scope>

</dependency>

<dependency>

<groupId>commons-io</groupId>

<artifactId>commons-io</artifactId>

<version>1.4</version>

<scope>compile</scope>

</dependency>

前期准备工作over。