JS传递数组到后台

方法一： 
1.使用JSON.stringify 将数组对象转化成json字符串;

var array = ["1", "2"];
$.ajax({  
    type : 'POST',  
    url: path + '/check/testPost', contentType : "application/json" , data : JSON.stringify(array), success : function(data) { } }); 

2.传输过程中参数 

3.后台处理

@RequestMapping(value = "/testPost", method = {RequestMethod.POST})
public void testPost(@RequestBody String[] array) throws IOException { for (String string : array) { System.out.println(string); } return ; }

方法二： 
1.前端不做处理:

var array = ["1", "2"];
$.ajax({  
    type : 'POST', url: path + '/check/testPost', contentType: "application/x-www-form-urlencoded", data: {"array": array}, success : function(data) { } }); 

2.传输过程中参数 

3.后台处理

@RequestMapping(value = "/testPost", method = {RequestMethod.POST})
public void testPost(HttpServletRequest req) throws IOException { String[] array = req.getParameterValues("array[]"); for (String string : array) { System.out.println(string); } return ; }

注:两种post请求的content-type不同。