我正在处理一个项目，我必须从第1页（名称，ID和学期）获取信息并将其存储在查询字符串中。然后我必须获取该信息并在第2页中存储它，并在第3页上显示它。我相信，我已将它存储在查询字符串中。我已经（暂时）将其设置为提醒消息，只是为了确保它正常工作。警报显示在第2页（成功!!!）。如何将解析后的信息存储到cookie中，以便在第3页上显示？我需要存储和显示第1页和第2页的信息，并在第3页上显示。
功能第1页：
function querySemester() {
var saveSemester = location.search;
var semesterData = "";
if (saveSemester != "")
semesterData = saveSemester.substring(saveSemester.search("&FirstName"), saveSemester.length);
saveSemester = "?semester=" + semesterDisplay;
location.href = "RegistrationPage_2.html" + saveSemester;
功能第2页：
function submitRegistration() {
var course = document.registration.courses.value;
var section = document.registration.section.value;
var major = document.registration.needForMajor.value;
//To display major requirement in confirm message
var checkDisplay;
if (document.registration.needForMajor.checked == true) {
checkDisplay = "Course Needed For Major";
}
else {
checkDisplay = "";
}
//Validates course
if (course == "") {
window.alert("You must select a Course!");
return false;
}
//Validates section
if (section == "") {
window.alert("You must select a Section!");
return false;
}
// Validates that the course and section are compatible
var error = true;
switch (course) {
case "CIS 100":
if (section == '100001') {
} else if (section == '100gw1') {
} else {
window.alert("You must select a valid section for CIS 100!");
error = false;
return false;
}
break;
case "CIS 120":
if (section == '120001') {
} else if (section == '120gw1') {
} else {
window.alert("You must select a valid section for CIS 120!");
error = false;
return false;
}
break;
case "CIS 220":
if (section == '220001') {
} else if (section == '220gw1') {
} else {
window.alert("You must select a valid section for CIS 220!");
error = false;
return false;
}
break;
case "CIS 299":
if (section == '299001') {
} else if (section == '299gw1') {
} else {
window.alert("You must select a valid section for CIS 299!");
error = false;
return false;
}
break;
case "CIS 302":
if (section == '302gw1') {
} else {
window.alert("You must select a valid section for CIS 302!");
error = false;
return false;
}
break;
case "CIS 304":
if (section == '304001') {
} else if (section == '304gw1') {
} else {
window.alert("You must select a valid section for CIS 304!");
error = false;
return false;
}
break;
case "CIS 321":
if (section == '321001') {
} else if (section == '321gw1') {
} else {
window.alert("You must select a valid section for CIS 321!");
error = false;
return false;
}
break;
case "CIS 322":
if (section == '322gw1') {
} else {
window.alert("You must select a valid section for CIS 322!");
error = false;
return false;
}
break;
case "CIS 325":
if (section == '325gw1') {
} else {
window.alert("You must select a valid section for CIS 325!");
error = false;
return false;
}
break;
case "CIS 330":
if (section == '330001') {
} else if (section == '330gw1') {
} else {
window.alert("You must select a valid section for CIS 330!");
error = false;
return false;
}
break;
case "CIS 332":
if (section == '332001') {
} else if (section == '332gw1') {
} else {
window.alert("You must select a valid section for CIS 332!");
error = false;
return false;
}
break;
case "CIS 341":
if (section == '341001') {
} else if (section == '341gw1') {
} else {
window.alert("You must select a valid section for CIS 341!");
error = false;
return false;
}
break;
case "CIS 343":
if (section == '34301a') {
} else if (section == '34301b') {
} else {
window.alert("You must select a valid section for CIS 343!");
error = false;
return false;
}
break;
case "CIS 352":
if (section == '352gw1') {
} else {
window.alert("You must select a valid section for CIS 352!");
error = false;
return false;
}
break;
case "CIS 354":
if (section == '354001') {
} else if (section == '354gw1') {
} else {
window.alert("You must select a valid section for CIS 354!");
error = false;
return false;
}
break;
case "CIS 401":
if (section == '401gw1') {
} else {
window.alert("You must select a valid section for CIS 401!");
error = false;
return false;
}
break;
case "CIS 419":
if (section == '419x01') {
} else {
window.alert("You must select a valid section for CIS 419!");
error = false;
return false;
}
break;
case "CIS 490":
if (section == '490001') {
} else if (section == '490gw1') {
} else {
window.alert("You must select a valid section for CIS 490!");
error = false;
return false;
}
break;
case "CIS 492":
if (section == '492gw1') {
} else {
window.alert("You must select a valid section for CIS 492!");
error = false;
return false;
}
break;
case "MAT 195":
if (section == '195001') {
} else if (section == '195w01') {
} else {
window.alert("You must select a valid section for MAT 195!");
error = false;
return false;
}
break;
case "MAT 215":
if (section == '215001') {
} else if (section == '215w01') {
} else {
window.alert("You must select a valid section for MAT 215!");
error = false;
return false;
}
break;
case "MAT 225":
if (section == '225001') {
} else if (section == '225w01') {
} else {
window.alert("You must select a valid section for MAT 225!");
error = false;
return false;
}
break;
case "MAT 281":
if (section == '281001') {
} else if (section == '281w01') {
} else {
window.alert("You must select a valid section for MAT 281!");
error = false;
return false;
}
}
var querySemester = location.search;
querySemester = querySemester.substring(1, querySemester.length);
var queryArray = querySemester.split("&");
for (var i = 0; i < queryArray.length; ++i) {
window.alert(queryArray[i] + "<br />");
}
return true;
}
function queryInfo() {
var saveInfo = location.search;
var data = "";
if (saveInfo != "")
data = saveInfo.substring(saveInfo.search("&FirstName"), saveInfo.length);
saveInfo = "?semester=" + semesterDisplay;
location.href = "GreendaleVerification.html" + saveInfo;
}
答案 0 :(得分：1)
由于当您在本地开发时，Cookie并不总是有效（我在过去开发时无法在Chrome中使用它），我建议localStorage：
这是您在localStorage中设置值的方式：
localStorage.setItem("<attribute>", "<data>");
这就是你从localStorage获得价值的方式：
var data = localStorage.getItem("<attribute>");
//code to do something with data
因此，对于您的代码，您可能希望将数据存储在第1页的代码中，如下所示：
localStorage.setItem("data", semesterData);
//it seemed like the data you passed to the URL was in semesterData, but
//you can pass any JavaScript string into the localStorage.setItem() command
然后使用以下命令在第2页和第3页上获取它：
var data = localStorage.getItem("data");