ajax往后台传值的一些方式

ajax java 接收参数

$(\'#del1\').click(function () {
    $.ajax({
        url: \'http://localhost:8089/test1\',
        data: {a: 1, b: 2},
        type: \'post\',
        success: function (r) {
            console.log(r)
        }
    })
})
$(\'#del2\').click(function () {
    $.ajax({
        url: \'http://localhost:8089/test2\',
        data: {a: 1, b: 2},
        type: \'post\',
        success: function (r) {
            console.log(r)
        }
    })
})
//在 jquery 的 ajax 中， contentType都是默认的值：application/x-www-form-urlencoded，这种格式的特点就是，name/value 成为一组，每组之间用 & 联接，而 name与value 则是使用 = 连接。如： wwwh.baidu.com/q?key=fdsa&lang=zh 这是get , 而 post 请求则是使用请求体，参数不在 url 中，在请求体中的参数表现形式也是: key=fdsa&lang=zh的形式。
$(\'#del3\').click(function () {
    $.ajax({
        url: \'http://localhost:8089/test3\',
        data: {id: 1, name: \'zhangsan\', sex: \'男\'},
        type: \'post\',
        success: function (r) {
            console.log(r)
        }
    })
})
$(\'#del4\').click(function () {
    $.ajax({
        url: \'http://localhost:8089/test4\',
        data: JSON.stringify({id: 1, name: \'zhangsan\', sex: \'男\'}),
        contentType: "application/json;charset=UTF-8",
        type: \'post\',
        success: function (r) {
            console.log(r)
        }
    })
})
$(\'#del5\').click(function () {
    $.ajax({
        url: \'http://localhost:8089/test5?a=1\',
        data: JSON.stringify({id: 1, name: \'zhangsan\', sex: \'男\'}),
        contentType: "application/json;charset=UTF-8",
        type: \'post\',
        success: function (r) {
            console.log(r)
        }
    })
})

$(\'#del6\').click(function () {
    $.ajax({
        url: \'http://localhost:8089/test6\',
        data: {arr: [1, 2, 3, 4]},
        type: \'post\',
        success: function (r) {
            console.log(r)
        }
    })
})

$(\'#del7\').click(function () {
    $.ajax({
        url: \'http://localhost:8089/test7\',
        data: JSON.stringify([1, 2, 3, 4]),
        contentType: "application/json;charset=UTF-8",
        type: \'post\',
        success: function (r) {
            console.log(r)
        }
    })
})后台代码：

@RequestMapping("/test1")
public String get1(String a,String b){
    return "";
}
@RequestMapping("/test2")
public String get2(@RequestParam("a") String a,@RequestParam("b") String b){
    return "";
}

@RequestMapping("/test3")
public String get3(Person person){
    return "";
}

@RequestMapping("/test4")
public String get4(@RequestBody Person person){
    return "";
}

@RequestMapping("/test5")
public String get5(@RequestBody Person person,@RequestParam("a") String a){
    return "";
}
@RequestMapping("/test6")
public String get6(@RequestParam("arr[]") Integer[] arr){
    return "";
}

@RequestMapping("/test7")
public String get7(@RequestBody Integer[] arr){
    return "";
}