效果：

代码：

StringUtil.js

//去除字符串中间空格

String.prototype.Trim = function() {

return this.replace(/(^s*)|(s*$)/g,"");

}

//去除字符串左侧空格

String.prototype.LTrim = function() {

return this.replace(/(^s*)/g,"");

}

//去除字符串右侧空格

String.prototype.RTrim = function() {

return this.replace(/(s*$)/g,"");

}

//去除字符串中所有空格(包括中间空格,需要设置第2个参数为:g)

function Trim(str,is_global){

var result;

result = str.replace(/(^s+)|(s+$)/g,"");

if(is_global.toLowerCase()=="g")

result = result.replace(/s/g,"");

return result;

}

indexedDB.js

window.onload = function(){

if(!window.indexedDB){

window.indexedDB = window.mozIndexedDB || window.webkitIndexedDB;

}

var db = null;

var request = indexedDB.open("mydb");

request.onupgradeneeded = function(e){

//db = request.result;

db = e.target.result;

createObjectStore(db);

}

function createObjectStore(db){

if(db.objectStoreNames.contains("customer")){

db.deleteObjectStore("customer");

}

var objectStore = db.createObjectStore("customer",{keyPath:"id",autoIncrement:true});

objectStore.createIndex("name","name",{unique:false});

objectStore.createIndex("email","email",{unique:true});

objectStore.add({name:"Tom", sex:"male", age: 34, email:"tom@facebok.org"});

objectStore.add({name:"Jiny", sex:"female", age: 25, email:"jiny@home.org"});

objectStore.add({name:"Liam", sex:"male", age: 23, email:"liam@163.com"});

}

request.onsuccess = function(e){

db = e.target.result;

if(!db.version=="1.0"){

var request = db.setVersion("1.0");

request.onsuccess = function(e){

createObjectStore(db);

showDataByCursor();

}

request.onerror = function(e){

alert(e);

}

}else{

showDataByCursor();

}

}

function showDataByCursor(objectStore){

if(!objectStore){

var transaction = db.transaction(["customer"]);

objectStore = transaction.objectStore("customer");

}

console.log("Store-Name :"+objectStore.name);

console.log("Store-KeyPath :"+objectStore.keyPath);

var request = objectStore.openCursor();

request.onsuccess = function(e){

var cursor = e.target.result;

if(cursor){

console.log(cursor.key);

console.log(cursor.value);

var data = cursor.value;

data.id = cursor.key;

showInTable(data);

cursor.continue();

}

}

request.onerror = function(e){

console.log("ERROR");

}

}

var table = document.getElementsByTagName("table")[0];

function showInTable(data){

//table.childNodes

var tbody = table.children[1];

//tbody = document.getElementsByTagName("tbody")[0];

var tr = document.createElement("tr");

var td_id = createTd(data,"id")

var checkBox=document.createElement("input");

checkBox.setAttribute("type","checkbox");

checkBox.setAttribute("name","check");

var textNode = td_id.childNodes[0];

checkBox.setAttribute("id",textNode.nodeValue);

//td_id.removeChild(textNode);

td_id.appendChild(checkBox);

//td_id.appendChild(textNode);

tr.appendChild(td_id);

var td_name = createTd(data,"name");

tr.appendChild(td_name);

var td_sex = createTd(data,"sex");

tr.appendChild(td_sex);

var td_age = createTd(data,"age");

tr.appendChild(td_age);

var td_email = createTd(data,"email");

tr.appendChild(td_email);

tbody.appendChild(tr);

}

function createTd(data,key){

var td = document.createElement("td");

td.contentEditable ="true";

var namedNodeMap = td.attributes;

var attrKey = document.createAttribute("key");

attrKey.value = key;

namedNodeMap.setNamedItem(attrKey);

var attrValue = document.createAttribute("value");

attrValue.value = data[key];

namedNodeMap.setNamedItem(attrValue);

var attrType = document.createAttribute("type");

attrType.value = typeof(data[key]);

namedNodeMap.setNamedItem(attrType);

td.innerText = data[key];

td.onblur = function(event){

console.log(this.parentNode.firstElementChild.innerText);

console.log(this.innerText.LTrim().RTrim());

console.log(this.attributes["value"].value);

console.log(this.attributes["key"].value);

console.log(this.innerText);

if(this.attributes["value"].value != this.innerText.LTrim().RTrim()){

saveOrUpdate(event.target);

//或saveOrUpdate(this)

}

}

return td;

}

function saveOrUpdate(obj){

var id = obj.parentNode.firstElementChild.innerText;

var transaction = db.transaction(["customer"],"readwrite");

var objectStore = transaction.objectStore("customer");

var request = objectStore.get(parseInt(id));

//var range = IDBKeyRange.only("Donna");

//var request = objectStore.index("name").openCursor(range);

request.onsuccess = function(event){

if(event.target.result){

//objectStore.delete(id);

var data = event.target.result;

console.log("Update :"+ data);

var value = obj.attributes["type"].value=="number"?parseInt(obj.innerText):obj.innerText;

data[obj.attributes["key"].value] = value;

var updateRequest = objectStore.put(data);

updateRequest.onsuccess = function(event){

//console.log(event.target);

console.log("UPDATE SUCCESS");

}

updateRequest.onerror = function(event){

console.log("UPDATE ERROR");

}

}else{

var data = {};

var tds = obj.parentNode.children;

for(var i=0;i

var td = tds[i];

var key = td.attributes["key"].value;

data[key] = td.attributes["type"].value=="number"?parseInt(td.innerText):td.innerText;

}

console.log("Add :"+ data);

var saveRequest = objectStore.add(data);

saveRequest.onsuccess = function(){

console.log("SAVE SUCCESS");

}

saveRequest.onerror = function(){

console.log("SAVE ERROR");

}

}

}

request.onerror = function(event){

alert(event);

}

}

var name = document.getElementsByName("name")[0];

var email = document.getElementsByName("email")[0];

var select = document.getElementsByTagName("button")[0];

select.onclick = function(event){

var value_name = name.value.LTrim().RTrim();

var value_email = email.value.LTrim().RTrim();

var transaction = db.transaction(["customer"],"readonly");

var objectStore = transaction.objectStore("customer");

var tbody = table.children[1];

var elements = tbody.children;

var count = elements.length;

for(var i=0;i

//动态移除，没有i++，始终移除第一个

tbody.removeChild(elements[i]);

}

if(value_name==""&& value_email==""){

var request = objectStore.openCursor();

request.onsuccess = function(event){

var cursor = event.target.result;

if(cursor){

showInTable(cursor.value)

cursor.continue();

}

console.log("GETALL SUCCESS");

};

request.onerror = function(event){

console.log(event.target);

console.log("GETALL ERROR");

};

}else{

if(value_name!=""){

var range = IDBKeyRange.only(value_name);

var request = objectStore.index("name").openCursor(range);

request.onsuccess = function(event){

var cursor = event.target.result;

if(cursor){

console.log("key :"+cursor.key);

console.log("value :"+cursor.value);

showInTable(cursor.value)

cursor.continue();

}

console.log("SELECT BY NAME SUCCESS");

}

request.onerror = function(event){

console.log("SELECT BY NAME ERROR");

}

}

if(value_email!=""){

var range = IDBKeyRange.only(value_email);

var request = objectStore.index("email").openCursor(range);

request.onsuccess = function(event){

var cursor = event.target.result;

if(cursor){

console.log("key :"+cursor.key);

console.log("value :"+cursor.value);

showInTable(cursor.value)

cursor.continue();

}

console.log("SELECT BY EMIAL SUCCESS");

}

request.onerror = function(event){

console.log("SELECT BY EMAIL ERROR");

}

}

}

}

var checkAll = document.getElementsByName("checkAll")[0];

var btnDelete = document.getElementsByName("delete")[0];

var btnClear = document.getElementsByName("clear")[0];

checkAll.onclick = function(event){

var checkBoxs = document.getElementsByName("check");

console.log(checkBoxs);

if(this.checked==true){

for(var i=0;i

checkBoxs[i].checked = true;

}

}else{

for(var i=0;i

checkBoxs[i].checked = false;

}

}

}

btnDelete.addEventListener("click",function(event){

var checkBoxs = document.getElementsByName("check");

console.log(checkBoxs);

var transaction = null;

var objectStore = null;

var request = null;

for(var i=0;i

var checkBox = checkBoxs[i];

if(checkBox.checked == true){

if(request == null){

transaction = db.transaction(["customer"],"readwrite");

objectStore = transaction.objectStore("customer");

}

var id = parseInt(checkBox.attributes["id"].value);

console.log("checked :"+id);

request = objectStore.get(id);

request.onsuccess = function(event){

if(event.target.result){

var record = event.target.result;

objectStore.delete(record.id);

for(var j=0;j

if(checkBoxs[j].attributes["id"].value-record.id==0){

var tr = checkBoxs[j].parentElement.parentElement;

var tbody = checkBoxs[j].parentElement.parentElement.parentElement;

tbody.removeChild(tr);

break;

}

}

console.log("DELETE SUCCESS");

}

};

request.onerror = function(event){

console.log("DELETE ERROR");

};

}

}

});

btnClear.addEventListener("click",function(event){

var objectStore = db.transaction(["customer"],"readwrite").objectStore("customer");

var request = objectStore.clear();

request.onsuccess = function(event){

console.log("CLEAR SUCCESS");

objectStore.openCursor().onsuccess = function(event){

var tbody = table.children[1];

var elements = tbody.children;

for(var i=0;i

//动态移除，没有i++，始终移除第一个

tbody.removeChild(elements[i]);

}

var cursor = event.target.result;

if(cursor){

var data = cursor.value;

data.id = cursor.key;

showInTable(data);

cursor.continue();

}

console.log("SHOW SUCCESS");

}

}

request.onerror = function(event){

console.log("CLEAR ERROR");

}

});

};

indexedDB.html

IndexedDB

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