java后台接收参数_java 后台如何 接收 uploader UploadFileOptions 参数

Uploader Example

// 扩展API加载完毕后调用onPlusReady回调函数

document.addEventListener( "plusready", onPlusReady, false );

var task = null;

// 扩展API加载完毕，现在可以正常调用扩展API

function onPlusReady() {

}

// 监听上传任务状态

function onStateChanged( upload, status ) {

if ( upload.state == 4 && status == 200 ) {

// 获取上传请求响应头中的Content-Type值

console.log(dtask.getResponseHeader("Content-Type"));

// 上传完成

alert( "Upload success: " + upload.getFileName() );

}

}

// 创建上传任务

function createUpload() {

var task = plus.uploader.createUpload( "http://www.test.com/upload.do" );

task.addFile( "_www/a.doc", {key:"testdoc"} );

task.addData( "string_key", "string_value" );

// 设置自定义数据头

task.setRequestHeader('Customer','CustomerValue/XXXXXXXXXXXX');

task.addEventListener( "statechanged", onStateChanged, false );

task.start();

}

这 其中的 task.addFile( "_www/a.doc", {key:"testdoc"} ); key后台怎么抓到。

java springMVC