如何获取AJAX响应的值 [英] How to get values of the AJAX Response

问题描述

我不是要从AJAX调用的结果中获取值.我返回JSON，但不知道如何获取值.这是我的代码:

I am not to getting the values from the result of the AJAX call. I return JSON but I do not know how to get a value. This is my code:

$.ajax({ 
    method: 'POST',
    dataType: 'json',
    url: 'queryProduct.php',
    data: { codigo: cod }                   
}).done(function(response){

    // How do it get values???
}); 

PHP文件结果:

$query = "SELECT * FROM produccion.ma_producto WHERE codigo={$codigo}"; 
$result = pg_query($conn, $query);  

if (!$result) {
    echo "Error query: " . pg_last_error($conn);
} else {
    header('Content-type: application/json; charset=utf-8');
    echo json_encode($result);
}

从第一个使用ajax进行jquery调用的php文件中，在我想获取值并将其设置为其他元素之后....

From the first jquery call php file with ajax and after I would like to get the values and set to others elements....

推荐答案

$row = pg_fetch_row($result) echo json_encode($row);

$row = pg_fetch_row($result) echo json_encode($row);

在您的PHP文件中使用以上代码.

Use above code in your PHP file.

考虑AJAX调用会返回此JSON数组.

Consider AJAX call returns this JSON Array.

即

response = [
        {
            color: "red",
            value: "#f00"
        },
        {
            color: "green",
            value: "#0f0"
        },
        {
            color: "blue",
            value: "#00f"
        },
        {
            color: "cyan",
            value: "#0ff"
        },
        {
            color: "magenta",
            value: "#f0f"
        },
        {
            color: "yellow",
            value: "#ff0"
        },
        {
            color: "black",
            value: "#000"
        }
    ]

现在，在AJAX调用成功之后，您要遍历此数组的每个JSON对象，其中每个对象为{ color: 'someValue', value : 'someValue'}.您可以使用item.color和item.value来访问它们.

Now, after success of AJAX call you want to iterate through each JSON Object of this array, Where each Object is { color: 'someValue', value : 'someValue'}. You can use item.color and item.value to access them.

您可以执行以下操作:

 $.ajax({
 method: 'POST',
 dataType: 'json',
 url: 'queryProduct.php',
 data: { codigo: cod },
 success: function(response) {                                   
     console.log(response.pagino);
});

在这里，响应是您的JSON数组，而item表示JSON数组的对象.

Here, response is your JSON Array and item represents an Object of JSON Array.

您可以使用item.fieldName从每个JSON对象访问每个字段.

You can use item.fieldName to access each of your field from each JSON Object.

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