在网上看了好多关于struts2的文件下载代码,自己试了一下,现在出现类型转换问题求教哪位高手帮解决一下。谢谢
我用的框架是SSI框架代码如下:
DownloadAction.javapackage com.test.action;import java.io.InputStream;import com.opensymphony.xwork2.ActionSupport;public class DownloadAction extends ActionSupport {
public InputStream getTargetFile() throws Exception {
return new java.io.FileInputStream("F:\\222.doc");
} public String execute() throws Exception {
return SUCCESS;
}
}
struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1//EN"
"http://struts.apache.org/dtds/struts-2.1.dtd"><struts>
<!--
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
-->
<constant name="struts.custom.i18n.resources" value="messages"/>
<constant name="struts.i18n.encoding" value="GBK"/>
<constant name="struts.objectFactory" value="spring"></constant> <package name="struct2" namespace="/" extends="struts-default">
<action name="download" class="downloadAction" method="getTargetFile">
<result name="success" type="stream">
<!--<param name="contentType">application/excel</param>-->
<param name="contentType">text/plain</param>
<param name="inputName">targetFile</param>
<param name="contentDisposition">attachment;filename="222.txt"</param>
<param name="bufferSize">4096</param>
</result>
</action>
</package> <!-- Add packages here --></struts>
异常信息:java.io.FileInputStream cannot be cast to java.lang.String
我用的框架是SSI框架代码如下:
DownloadAction.javapackage com.test.action;import java.io.InputStream;import com.opensymphony.xwork2.ActionSupport;public class DownloadAction extends ActionSupport {
public InputStream getTargetFile() throws Exception {
return new java.io.FileInputStream("F:\\222.doc");
} public String execute() throws Exception {
return SUCCESS;
}
}
struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1//EN"
"http://struts.apache.org/dtds/struts-2.1.dtd"><struts>
<!--
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
-->
<constant name="struts.custom.i18n.resources" value="messages"/>
<constant name="struts.i18n.encoding" value="GBK"/>
<constant name="struts.objectFactory" value="spring"></constant> <package name="struct2" namespace="/" extends="struts-default">
<action name="download" class="downloadAction" method="getTargetFile">
<result name="success" type="stream">
<!--<param name="contentType">application/excel</param>-->
<param name="contentType">text/plain</param>
<param name="inputName">targetFile</param>
<param name="contentDisposition">attachment;filename="222.txt"</param>
<param name="bufferSize">4096</param>
</result>
</action>
</package> <!-- Add packages here --></struts>
异常信息:java.io.FileInputStream cannot be cast to java.lang.String
是不是这里的问题??