java 不生成文件下载_java – 浏览器不生成文件下载对话框

我目前的情况是JavaScript客户端有一堆数据,我POST到服务器处理/转换成不同的格式(例如CSV),现在我想将转换后的数据从服务器发送到客户端.

我设置了响应的内容类型,但浏览器不生成文件对话框.

这是我的控制器的样子：

@RequestMapping(value="/exportBoxes/{type}/{filename:.+}", method=RequestMethod.POST)

public String exportBoxes(@RequestBody String body, @PathVariable String type,

@PathVariable String filename, HttpServletResponse response) throws IOException

{

JsonObject jsonObject = new JsonParser().parse(body).getAsJsonObject();

//grab the data from the JSONobject

String data = jsonObject.get("JSONdata").getAsString();

//create output stream writer

PrintWriter p = new PrintWriter(response.getOutputStream());

//set response type and print header

if(type.equals("csv"))

{

response.setContentType("text/csv");

response.setHeader("Content-Disposition", "attachment; filename=\"" + filename + "\"");

}

//print the points to the file

for(int i = 0; i < splitPoints.length; i++)

{

//print remainder of CSV file - abstracted

}

p.flush(); //flush the stream

response.flushBuffer();

p.close(); //close the stream

return "success";

}

这是POST数据的客户端函数：

DAService.prototype.exportBoxes = function(type, filename, data) {

var path = 'api/rest/da/exportBoxes/' + type + '/' + filename

var url = (this.connection) ? this.connection + path : path;

var JSONdata = '';

var returnType = ''

//create JSON string to pass to Java controller

if(type == 'csv')

{

JSONdata = '{ "JSONdata" : "' + data.replace(/ /g, '') + '" }';

returnType = 'text/csv';

}

else

{

throw "Invalid export format " + type;

}

$j.ajax({

url: url,

contentType: 'application/json',

type: 'POST',

dataType: returnType,

data: JSONdata,

success: function(returnedData){

console.log("exportBox successful");

},

error: function(x,y,z) {

console.log("exportBox failed with error '" + y + "'");

},

complete: function(empty, textStatus){

console.log("exportBox complete textStatus='" + textStatus + "'");

}

});

};

此代码没有生成错误,服务器的响应中包含CSV文件,我无法让客户端生成下载对话框.

我遗失了一件我看不到的东西,有人可以帮帮我吗？