我在Node.js
中遇到Express正文解析器的问题我有这样的输入:
<input id="personEmail1" type="email" name="person[0][email]" placeholder="Email1" class="form-control">
<input id="personEmail2" type="email" name="person[1][email]" placeholder="Email2" class="form-control">
当我提交表单后,我在console.log中得到了这个:
{ 'person[0][email]': 'info@sss.sss', 'person[1][email]': 'info@ggg.ggg' }
但是我希望它以json格式解析:
{ person: [{email: 'info@sss.sss'}, {email: 'info@ggg.ggg'}] }
我做错了什么?
答案 0 :(得分:5)
对于Express版本4.x,当您需要手动安装body-parser和multer时,您希望从帖子中获取嵌套属性,例如data[test]
形式为req.body.data.test
,您需要设置:
app.use(bodyParser.urlencoded({ extended: true }));
答案 1 :(得分:1)
您正在使用Express正文解析器中间件括号表示法。但是,作为可以做什么的一个例子......
使用此视图:
<form method="post">
<label for="person_email_1">Email address 1</label>
<input id="person_email_1" name="person[0][email]" type="email" value="email1@example.com"> <br>
<label for="person_email_2">Email address 2</label>
<input id="person_email_2" name="person[1][email]" type="email" value="email2@example.com"> <br>
<button type="submit">Submit v1</button>
</form>
<br>
<form method="post">
<label for="person_email_1">Email address 1</label>
<input id="person_email_1" name="person[email][0]" type="email" value="email1@example.com"> <br>
<label for="person_email_2">Email address 2</label>
<input id="person_email_2" name="person[email][1]" type="email" value="email2@example.com"> <br>
<button type="submit">Submit v2a</button>
</form>
<br>
<form method="post">
<label for="person_email_1">Email address 1</label>
<input id="person_email_1" name="person[email]" type="email" value="email1@example.com"> <br>
<label for="person_email_2">Email address 2</label>
<input id="person_email_2" name="person[email]" type="email" value="email2@example.com"> <br>
<button type="submit">Submit v2b</button>
</form>
<br>
<form method="post">
<label for="person_email_1_address">Email address 1</label>
<input id="person_email_1_address" name="person[emailAddresses][0][address]" type="email" value="email1@example.com">
<input id="person_email_1_description" name="person[emailAddresses][0][description]" type="text" value="lorem ipsum 1"> <br>
<label for="person_email_2_address">Email address 2</label>
<input id="person_email_2_address" name="person[emailAddresses][1][address]" type="email" value="email2@example.com">
<input id="person_email_2_description" name="person[emailAddresses][1][description]" type="text" value="lorem ipsum 2"> <br>
<button type="submit">Submit v3</button>
</form>
...和这个帖子处理程序:
function postHandler(req, res) {
console.log(JSON.stringify(req.body)); // show in console
res.send(req.body); // show in browser
}
版本1(您的版本,适用于我,并返回您想要的结果)req.body:
{
"person": [
{"email": "email1@example.com"},
{"email": "email2@example.com"}
]
}
版本2a&amp; 2b(一个字符串数组,有/没有索引号)req.body:
{
"person": {
"email": [
"email1@example.com",
"email2@example.com"
]
}
}
版本3(对象数组)req.body:
{
"person": {
"emailAddresses": [
{
"address": "email1@example.com",
"description": "lorem ipsum 1"
},
{
"address": "email2@example.com",
"description": "lorem ipsum 2"
}
]
}
}
我亲自使用过版本2&amp; 3在节点/ Express / jquery / Bootstrap业务应用程序中,个人或企业帐户可以拥有无限的电话号码,电子邮件地址和URL。身体解析器括号表示法使其变得愚蠢。
答案 2 :(得分:1)
即使你已经为你的密钥使用了有效的Javascript语法,它们仍然只是字符串而没有 JSON解析器会尝试在它们上面调用eval
。
但是,JSON已经有了一个数组概念,它应该按照你期望的方式工作。
向我们展示调用console.log
的代码会很有用。但我猜想,您需要重新考虑字段名称的命名约定。
<input id="personEmail1" type="email" name="personEmail1" placeholder="Email1" class="form-control">
<input id="personEmail2" type="email" name="personEmail2" placeholder="Email2" class="form-control">
然后从该数据创建Javascript对象。
function handler(req, res) {
var people = [
{ email: req.body.personEmail1 },
{ email: req.body.personEmail2 }
];
console.log(people[0]); // person 1
console.log(people[1]); // person 2
console.log(people); // both people
}
答案 3 :(得分:0)
我使用此https://github.com/macek/jquery-serialize-object将表单序列化为JSON。它可以根据需要解析数据,并且易于使用。
$.ajax({
type: 'post',
data: $form.serializeJSON(),
contentType: 'application/json',
url: $url,
success: function (result) { ... }
});
我认为这是最简单的