这是我的功能： 问题是我不知道如何将“值”添加到“链接”。如何向超链接添加变量值

function add_subject_to_subjects_list() {

var value = $("#id_name").val();

var link = "/subject/create/"+value;

show_subjects_list();

$("#btn-create-subject").click(function() {

$.post(link, function(data) {

show_subjects_list();

alert(data).hide("fast");

});

});

}

因为我的功能POST数据到不同的链接：http://127.0.0.1:8000/subject/create/

但我想我的链接取决于值： ，它应该是这样的：

http://127.0.0.1:8000/subject/create/some_value/

这是整个js为该页面：

$(document).ready(function(){

add_subject_to_subjects_list();

});

function show_subjects_list() {

$.post("/subject/list/", function(data){

for(var i=0; i

$("#list").append('

};

}, 'json');

}

function add_subject_to_subjects_list() {

var value = $("#id_name").val();

var link = "/subject/create/"+value;

show_subjects_list();

$("#btn-create-subject").click(function() {

$.post(link, function(data) {

show_subjects_list();

alert(data).hide("fast");

});

});

}

这是我的服务器端(I “M使用Django/Python)的：

@csrf_exempt

def subjects_list(request):

user = request.user

subjects = Subjects.objects.filter(user__exact = user)

result = serializers.serialize("json", subjects, fields=('name'))

return HttpResponse(result)

@csrf_exempt

def new_subject(request, subject):

subject, created= Subjects.objects.get_or_create(

name=subject,

user=request.user,

created_by=request.user)

if created:

message = "Subject was created"

else:

message = "No subject was added to the database"

return HttpResponse(message)

，这就是我的html：

{% block left-menu %}

{% endblock %}

适合该HTML表单：

class SubjectCreationForm(forms.Form):

name = forms.CharField(label="Subject Name", widget=forms.TextInput(attrs={'size':9}))

class Meta:

exclude = ('created_by', 'created_time', 'num_of_followers', 'vote')

def clean_name(self):

name = self.cleaned_data['name']

if len(name)>1:

return name

else:

raise forms.ValidationError("Subject name should be longer")

2012-08-13

Vor

+0

你可以发布一些更多的代码，特别是在函数被调用和字段$(“＃id_name”) –

2012-08-13 04:36:03

+0

耶，一秒 –

2012-08-13 04:36:31

+0

它看起来像值是空的，也警告不会返回一个jQuery对象 –

2012-08-13 04:36:55

Vm中一个超链接URL需要拼接中文作为Get请求的参数。如果直接拼接，传到后台Action的参数对象中后取出会是乱码，需要编码后再拼接到URL上。

解决方法是在Action中添加一个成员变量，保存编码后的中文参数。在vm页面渲染时取出这个变量值，再拼接超链接。

在这里碰到的问题是：调用java.net.URLEncoder的encode()方法时，如果没有显示指定字符集参数，那么URLEncoder会使用默认字符集。这个默认字符集在Eclipse里跑main()方法和在Tomcat里跑Web应用，得到的结果不一样，所以影响了编码的结果。

[java]

/**

* Translates a string into x-www-form-urlencoded

* format. This method uses the platform'sdefault encoding

* as the encoding scheme to obtain thebytes for unsafe characters.

*

* @param  s   String to betranslated.

* @deprecated The resulting string mayvary depending on the platform's

*             default encoding. Instead, use theencode(String,String)

*             method to specify the encoding.

* @return  the translated String.

*/

@Deprecated

public static String encode(String s) {

String str = null;

try {

str = encode(s, dfltEncName);

} catch(UnsupportedEncodingException e) {

// The system should always have theplatform default

}

return str;

}

/**

* Translates a string into x-www-form-urlencoded

* format. This method uses the platform'sdefault encoding

* as the encoding scheme to obtain thebytes for unsafe characters.

*

* @param  s   String to betranslated.

* @deprecated The resulting string mayvary depending on the platform's

*             default encoding. Instead, use theencode(String,String)

*             method to specify the encoding.

* @return  the translated String.

*/

@Deprecated

public static String encode(String s) {

String str = null;

try {

str = encode(s, dfltEncName);

} catch(UnsupportedEncodingException e) {

// The system should always have theplatform default

}

return str;

}

方法的注释中也说明了不建议使用的原因是，这个encode(String)方法依赖于平台字符集。