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WebWork下載的實(shí)現(xiàn)是怎么樣的,很多新手對(duì)此不是很清楚,為了幫助大家解決這個(gè)難題,下面小編將為大家詳細(xì)講解,有這方面需求的人可以來(lái)學(xué)習(xí)下,希望你能有所收獲。
WebWork下載文件時(shí),首先在xwork.xml中添加以下內(nèi)容:
<action name="download" class="com.mycompany.action.FileDownloadAction"> <result name="success" type="stream"> <param name="contentType">application/octet-stream</param> <param name="inputName">inputStream</param> <param name="contentDisposition">attachment;filename="${downloadFileName}"</param> <param name="bufferSize">4096</param> </result> </action> <action name="download" class="com.mycompany.action.FileDownloadAction"> <result name="success" type="stream"> <param name="contentType">application/octet-stream</param> <param name="inputName">inputStream</param> <param name="contentDisposition">attachment;filename="${downloadFileName}"</param> <param name="bufferSize">4096</param> </result> </action>
這時(shí)需要把fileName作為參數(shù)傳過(guò)來(lái),以下是action:
import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.InputStream; import java.io.UnsupportedEncodingException; import com.opensymphony.xwork.Action; public class FileDownloadAction implements Action { private String fileName = ""; public InputStream getInputStream () throws Exception { InputStream is = null; try { is = new FileInputStream(fileName); } catch (FileNotFoundException e1) { } return is; } public String execute () throws Exception { return SUCCESS; } public void setFileName (String fileName) { this.fileName = fileName; } public String getFileName () { return fileName; } public String getDownloadFileName () { String downFileName = fileName; try { downFileName = new String(downFileName.getBytes(), "utf8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return downFileName; } }
至此就完成了WebWork下載。
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