ajax通过POST方式调用.net的webService时，数据过长时服务器返回500错误
同事通过post方式通过WebService提交图片时，图片大小超过50KB以上时服务器就返回500错误，50KB以下一切正常。网上查了资料，通过设置jsonSerialization maxJsonLength的值问题解决
<!--功能说明：Ajax调用WebService -->
<script type="text/javascript">
function test(){
$.ajax({
type: "POST",
contentType: "application/json;charset=utf-8",
url: "http://www.xxxx.org/test.asmx/TestMethod",
data:"{a:12345,b:'imgData.base64'}",
success: function (response) {
alert("成功");
},
error: function (msg) {
alert("错误：" + msg);
}
})
}
</script>
在web.config的configuration节中添加如下设置
<configuration>
<system.web.extensions>
<scripting>
<webServices>
<!--
maxJsonLength:单位为字节(byte)
-->
<jsonSerialization maxJsonLength="1024000"/>
</webServices>
</scripting>
</system.web.extensions>
</configuration>
