前台js:
form:
Ext.define("GS.base.BasicImportForm",{
extend:"Ext.form.Panel",
alias:"widget.basicImportForm",
frame:true,
tbar:[],
layout:{
type:'table'
},
items:[{
xtype:'fileuploadfield',
fieldLabel:'文件信息',
name:'file',
labelWidth:60,
width:350,
allowbBlank:false,
msgTarget:'side',
buttonText:'选择文件'
}
]
});
controller:
"baseModelGrid button[ref=doc_upload]":{
click:function(){
var win =Ext.create('Ext.Window', {
height: 250,
width: 500,
layout: 'fit',
closeAction: 'hide',
maximizable: true, //是否可以最大化
minimizable: true, //是否可以最小化
resizable: true, //是否可以改变窗口大小
modal :true,//为真 当显示时,制作窗口模板并且掩饰他背后的一切
tbar:[
{xtype:"button",text:"上传",ref:"docupload",iconCls:"up",
listeners:{
'click':function(bt,e,eOpts){
var basicImportForm = bt.up("window").down("basicImportForm");
var formObj = basicImportForm.getForm();
var file=formObj.findField("file");
var str = file.getValue();
var filename=str;
str = str.substr(str.indexOf('.'),str.length - 1);
if("" == str || str==".exe") {
Ext.MessageBox.alert("提示","文件不能为空或者以.exe结尾!");
return;
};
if(!Ext.isEmpty(file.getValue())){
Ext.MessageBox.buttonText = {
ok : "确定",
cancel : "取消",
yes : "是",
no : "否"
};
Ext.MessageBox.confirm("系统提示","确定是否上传?",function(btn,txt){
if(btn == "yes"){
basicImportForm.submit({
url:'loadAction!upload.action',
params:{fileName:filename},
waitMsg:'正在上传....',
success:function(form,action){
var resObj = action.result;
if (resObj.success) {
Ext.Msg.alert("提示","上传成功");
win.hide();
}else{
Ext.Msg.alert("提示","上传失败");
}
},
failure:function(form, action){
Ext.Msg.alert("提示","上传失败");
}
});
}
});
}
}
}
}
],
items: [{ xtype: "basicImportForm"}]
}).show();
}
}
显示页面:
'-',{xtype:'button',text:'上传',ref:'doc_upload'}
java代码:
public class LoadAction extends BaseAction {
/**
* 序列号
*/
private static final long serialVersionUID = 1L;
//这个是用来写运行结果的信息的
private String msg;
//来返回信息给前台的因为这里继承了baseaction直接用了towrite没有用到,否则可以通过它进行信息的返回
private String contentType;
//这个file是从extjs的form中的对应的xtype=fileupload name=file来的,名字一定要相对应,不然无法获得文件
private File file;
//filename是从前台传过来的,也可以通过request得到然后自己拼接
private String fileName;
public void upload() throws Exception {
//文件上传保存的位置
String realPath = "E:\\" + fileName;
if (file.isFile()) {
//定义并初始化io流的读写操作
BufferedInputStream bis = new BufferedInputStream(
new FileInputStream(file));
BufferedOutputStream bos = null;
try {
bos = new BufferedOutputStream(new FileOutputStream(realPath));// 为以防万一,写文件的路径尽量写成正双斜杠的
// 从源文件中取数据,写到目标文件中
byte[] buff = new byte[8192];
for (int len = -1; (len = bis.read(buff)) != -1;) {
bos.write(buff, 0, len);
}
bos.flush();
} catch (IOException ie) {
ie.printStackTrace();
toWrite(jsonBuilder.returnFailureJson("'文件上传失败'"));
} finally {
if (bis != null) {
try {
bis.close();
} catch (IOException ie) {
ie.printStackTrace();
}
}
if (bos != null) {
try {
bos.close();
} catch (IOException ie) {
ie.printStackTrace();
}
}
}
}
toWrite(jsonBuilder.returnSuccessJson("'文件上传成功'"));
}
public String getFileName() {
return fileName;
}
public void setFileName(String fileName) {
this.fileName = fileName;
}
// since we are using <s:file name="upload" .../> the file name will be
// obtained through getter/setter of <file-tag-name>FileName
public String getUploadFileName() {
return fileName;
}
public void setUploadFileName(String fileName) {
this.fileName = fileName;
}
// since we are using <s:file name="upload" ... /> the content type will be
// obtained through getter/setter of <file-tag-name>ContentType
public String getUploadContentType() {
return contentType;
}
public void setUploadContentType(String contentType) {
this.contentType = contentType;
}
// since we are using <s:file name="upload" ... /> the File itself will be
// obtained through getter/setter of <file-tag-name>
public File getUpload() {
return file;
}
public void setUpload(File file) {
this.file = file;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
public String getContentType() {
return contentType;
}
public void setContentType(String contentType) {
this.contentType = contentType;
}
public File getFile() {
return file;
}
public void setFile(File file) {
this.file = file;
}
}