我的实践整理。java
方式一：
发送数据web
$(':submit').on('click',function(){
$.ajax({
url:"buy",
type:"POST",
data:JSON.stringify($('form').serializeObject()),
contentType:"application/json", //缺失会出现URL编码，没法转成json对象
success:function(){
alert("成功");
}
});
});
/**
* 自动将form表单封装成json对象
*/
$.fn.serializeObject = function() {
var o = {};
var a = this.serializeArray();
$.each(a, function() {
if (o[this.name]) {
if (!o[this.name].push) {
o[this.name] = [ o[this.name] ];
}
o[this.name].push(this.value || '');
} else {
o[this.name] = this.value || '';
}
});
return o;
};
contentType:”application/json”不能缺失，缺失数据会成为URL编码，形成没法转成json对象，后台接收的内容以下ajax
String: %7B%22huohao%22%3A%22234%22%2C%22changjia%22%3A%221234%22%2C%22yanse%22%3A%22%22%2C%22xiangshu%22%3A%22%22%2C%22shuangshu%22%3A%22%22%2C%22jinjia%22%3A%22%22%2C%22riqi%22%3A%22%22%2C%22shoujia%22%3A%22%22%2C%22beizhu%22%3A%22asdf%22%7D=
controller接收spring
@RequestMapping(value = "/buy")
public void addBuy(@RequestBody String buyAdd){
System.out.println("String: "+buyAdd);
BuyAdd add = JSON.parseObject(buyAdd, BuyAdd.class); //此处用的FastJson转换为对象
System.out.println("**************");
System.out.println("Object: "+add);
System.out.println("==============================");
}
接收显示为json
String: {
"huohao":"111","changjia":"222","yanse":"33","xiangshu":"","shuangshu":"","jinjia":"","riqi":"","shoujia":"","beizhu":"aaa"}
**************
Object: BuyAdd{huohao='111', changjia='222', yanse='33', xiangshu='', shuangshu='', jinjia='', riqi='', shoujia='', beizhu='aaa'}
==============================
声明：这里我用的是FastJson转换，由于@RequestBody并不支持FastJson，因此进行的手动转换。Jackson能够直接用@RequestBody对象类型自动转换(即addBuy(@RequestBody BuyAdd buyAdd))。mvc
此处记录一种特殊需求，表单传递的为多个相同对象
用上述方式是这种结果app
String: {
"huohao":["5678","4567"],"changjia":["978","9678"],"yanse":"","xiangshu":"","shuangshu":"","jinjia":"","riqi":"","shoujia":"","beizhu":""}
两个对象合并为一个json发送过去，后台解析会很麻烦
这里我将form表单封装成json对象的方法进行了更改，使其最后为json对象的集合，后台能够直接读取集合进行解析svg
/**
* 自动将form表单封装成json对象
*/
$.fn.serializeObject = function() {
var list = [];
var o = {};
var a = this.serializeArray();
$.each(a, function() {
if (!o[this.name] && o[this.name]!='') {
o[this.name] = this.value || '';
} else {
list.push(o);
o={};
o[this.name] = this.value || '';
}
});
list.push(o);
return list;
};
controllerpost
@RequestMapping(value = "/buy")
public void addBuy(@RequestBody String requestAddBuy){
System.out.println("String: "+ requestAddBuy);
List addBuy = JSON.parseArray(requestAddBuy, RequestAddBuy.class);
System.out.println(addBuy);
}
最后的结果
String: [{
"huohao":"54674","changjia":"78i","yanse":"","xiangshu":"","shuangshu":"","jinjia":"","riqi":"","shoujia":"","beizhu":""},{
"huohao":"457","changjia":"","yanse":"","xiangshu":"457","shuangshu":"","jinjia":"","riqi":"","shoujia":"","beizhu":"678ur7t"}]
[RequestAddBuy{huohao='54674', changjia='78i', yanse='', xiangshu='', shuangshu='', jinjia='', riqi='', shoujia='', beizhu=''}, RequestAddBuy{huohao='457', changjia='', yanse='', xiangshu='457', shuangshu='', jinjia='', riqi='', shoujia='', beizhu='678ur7t'}]
声明：这里一样是存在FastJson的问题，若是用Jackson则能够把controller改成addBuy(@RequestBody List requestAddBuy)
方式二：
发送数据
$(':submit').on('click',function(){
$.ajax({
url:"buy",
type:"POST",
data:$('form').serializeArray(),
contentType:"application/x-www-form-urlencoded",
success:function(){
alert("成功");
}
});
});
使用jQuery自带方法$.serializeArray()转换
而后使用contentType:”application/x-www-form-urlencoded”格式
controller接收
@RequestMapping(value = "/buy")
public void addBuy(BuyAdd buyAdd){
System.out.println(buyAdd);
}
接收显示
BuyAdd{huohao='245', changjia='wef', yanse='', xiangshu='', shuangshu='', jinjia='', riqi='', shoujia='', beizhu='2345'}
这种方式能够直接接收对象，不如直接使用form自动提交省事(方式三)
方式三：
数据传输
controller接收
@RequestMapping(value = "/buy")
public void addBuy(BuyAdd buyAdd){
System.out.println(buyAdd);
}
接收显示
BuyAdd{huohao='245', changjia='wef', yanse='', xiangshu='', shuangshu='', jinjia='', riqi='', shoujia='', beizhu='2345'}
