1.HTML代码
<!DOCTYPE html> <html> <head> <title></title> <Meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <!-- 引入相关的js文件，相对路径 --> <script src="jquery/jquery-1.10.2.js"></script> <script type="text/javascript" src="jquery/ajaxfileupload.js"></script> </head> <script> jQuery(function() { $("#button").click(function() { //得到上传文件的名称 var fileName = $("#filetoUpload").val().split("\\").pop(); $.ajaxFileUpload({ url : "api/uploadFile",//处理上传文件url secureuri : false,data : { name : encodeURI(fileName),//后台接收到的文件名乱码,用URL编码防止乱码，后台用URLDecoder解码 description : "这是文件描述" //这个也应该用url编码 },fileElementId : "filetoUpload",//file控件id dataType : "json",success : function(data) { alert(data); },error : function(data) { alert(data); } }); return false; }); }); </script> <body> <input id="filetoUpload" type="file" name="filetoUpload" class="input"> <button id="button">上传</button> </body> </html>
2.服务端代码（Action代码）
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.net.URLDecoder;
import java.util.HashMap;
import java.util.Map;
import org.apache.struts2.interceptor.RequestAware;
import com.opensymphony.xwork2.ActionSupport;
public class ApiAction extends ActionSupport implements RequestAware{
private static final long serialVersionUID = -5679214991812521127L;
private Map<String,Object> request;
private File filetoUpload;
private String name;
private String description;
public Map<String,Object> responseJson = new HashMap<String,Object>();
public String handleFile(){
try {
//解决传递过来的文件名乱码问题
String fileName = URLDecoder.decode(name,"UTF-8");
FileInputStream inputStream = new FileInputStream(filetoUpload);
FileOutputStream outputStream = new FileOutputStream("D:/data/" + fileName);
byte[] buf = new byte[1024];
int length = 0;
while ((length = inputStream.read(buf)) != -1) {
outputStream.write(buf,length);
}
inputStream.close();
outputStream.flush();
outputStream.close();
System.out.println("保存成功。name="+fileName+",description="+description);
responseJson.put("msg","保存成功。name="+fileName+",description="+description);
} catch (Exception e) {
e.printstacktrace();
}
return SUCCESS;
}
@Override
public void setRequest(Map<String,Object> request) {
this.request = request;
}
public File getFiletoUpload() {
return filetoUpload;
}
public void setFiletoUpload(File filetoUpload) {
this.filetoUpload = filetoUpload;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Map<String,Object> getResponseJson() {
return responseJson;
}
public void setResponseJson(Map<String,Object> responseJson) {
this.responseJson = responseJson;
}
}
3.Struts2配置
返回的是json格式。
<package name="api" namespace="/api" extends="json-default">
<action name="uploadFile" class="com.alisa.action.ApiAction" method="handleFile">
<result name="success" type="json">
<param name="root">responseJson</param>
</result>
</action>
</package>
原文地址：https://www.jb51.cc/ajax/162190.html
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