本文通过实例给大家详细介绍jQuery中通过ajax调用webservice传递数组参数的相关资料,需要的朋友可以参考下

下面通过实例给大家说明比较直观些，更方便大家了解。

本人的项目中通过jquery.ajax调用webservice.

客户端代码如下:

$.ajax({

url: "test/xxx.asmx",

type: 'POST',

dataType: 'xml',

timeout: ,

data: { name: "zhangsan", tags: ["aa", "bb", "cc"] },

error: function(xml) {

alert(xml.responseText);

},

success: function(xml) {

alert("OK");

}

});

服务端代码如下:

[WebMethod]

public XmlDocument xxx(string name, string [] tags )

{ 

return sth; 

}

总是抛出异常.

问题出现在这里:

下面是HTTP数据:

POST http://xxx.com/xxx.asmx/xxx HTTP/1.1

Host: center.cmis.htpc.com.cn

Connection: keep-alive

Content-Length: 55

Cache-Control: max-age=0

Origin: http://xxx.com

User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/14.0.835.186 Safari/535.1

Content-Type: application/x-www-form-urlencoded; charset=UTF-8

Accept: application/xml, text/xml, */*; q=0.01

Referer: http://xxx.com/xxx.aspx

Accept-Encoding: gzip,deflate,sdch

Accept-Language: zh-CN,zh;q=0.8

Accept-Charset: GBK,utf-8;q=0.7,*;q=0.3

name=zhangsan&tags%5B%5D=aa&tags%5B%5D=bb&tags%5B%5D=cc

而它期望的格式是如下的:

POST /xxx.asmx/xxx HTTP/1.1

Host: xxx.com

Content-Type: application/x-www-form-urlencoded

Content-Length: length

name=string&tags=string&tags=string

比较上面粗体,post的数据除了问题. 正确的应该如下:

name=zhangsan&tags=aa&tags=bb&tags=cc

看来问题出在jquery.ajax上面了.见代码(jquery.1.8.3.js)

function buildParams(prefix, obj, traditional, add) {

var name;

if (jQuery.isArray(obj)) { 

// Serialize array item.

jQuery.each(obj, function(i, v) {

if (traditional || rbracket.test(prefix)) { 

// Treat each array item as a scalar.

add(prefix, v);

} else {

// If array item is non-scalar (array or object), encode its

// numeric index to resolve deserialization ambiguity issues.

// Note that rack (as of ..) can't currently deserialize

// nested arrays properly, and attempting to do so may cause

// a server error. Possible fixes are to modify rack's

// deserialization algorithm or to provide an option or flag

// to force array serialization to be shallow.

//ytx 

buildParams(prefix, v, traditional, add);

//buildParams(prefix + "[" + (typeof v === "object" ? i : "") + "]", v, traditional, add);

}

});

} else if (!traditional && jQuery.type(obj) === "object") {

// Serialize object item.

for (name in obj) {

buildParams(prefix + "[" + name + "]", obj[name], traditional, add);

}

} else {

// Serialize scalar item.

add(prefix, obj);

}

}

结论:

出问题的代码在22行,我修改成21行那样就行了.

不过,我对js/jquery都是一知半解的,希望不要引起别的后遗症,呵呵.

以上所述是小编给大家介绍的jQuery中通过ajax调用webservice传递数组参数的问题实例详解的相关知识，希望对大家有所帮助