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我有一个 ajax 调用，我希望在成功函数中循环遍历类中的每个标签，并将它们的值设置为从服务器响应返回的值。下面是代码，但是这会将所有标签设置为相同的值，这不是我想要的我想要访问该项目的索引并仅将该索引设置为响应值。我在哪里错了？：

查询：

 function GetCitizenTypeDescription(citizenTypeId){                 
        $.ajax({
        type:'GET',
        url:'getCitizenTypeDescription.htm',
        data:{citizenTypeId:citizenTypeId},
        dataType: 'text',
        success: function (data) {       
         $('.citizenTypeDesc').each(function(i){                
                 alert(data);
                 $('.citizenTypeDesc').text(data);      
        });
    }


    });

}


$(document).ready(function() {      


        $(".photos").each(function(i){                  

            if ($(this).val() != '') {
                   var image = new Image();                      
                    image.src =  $(this).val();

                    image.onload = function(){ 

                            var ctx = document.getElementsByClassName("canvas")[i].getContext('2d');
                            ctx.drawImage(image,0,0, 320, 240); 
                 }                      
        }     



    });

    $('.citizenTypeDesc').each(function(i){

          var citizenTypeId = document.getElementsByClassName("citizenTypeId")[i].value;
          GetCitizenTypeDescription(citizenTypeId);

    });


});

控制台返回正确的数据，我只需要将其写入标签

安慰：

GET http://localhost:8084/crimeTrack/getCitizenTypeDescription.htm?citizenTypeId=2 200 OK 174ms
Response
CRIMINAL

GET http://localhost:8084/crimeTrack/getCitizenTypeDescription.htm?citizenTypeId=3 200 OK 174ms
Response
VICTIM

GET http://localhost:8084/crimeTrack/getCitizenTypeDescription.htm?citizenTypeId=4 200 OK 174ms
Response
....

html

</head>
<body>
<div id ="content">
<c:forEach items="${citizens}" var="citizen">
<div id="table">    
    <div>
        <p><canvas class="canvas" height="240" width="320"></canvas>
    </div>
        <a href="citizen_registration.htm">Name:- ${citizen.fName}  ${citizen.lName}</a>
        <input type="hidden" id="photo" value="${citizen.photo}" class="photos"/>
        <input type="hidden" id="socialSecurityNumber" value="${citizen.socialSecurityNumber}" />
        <input type="text" class="citizenTypeId" value="${citizen.citizenTypeId}"/>
        <label class="citizenTypeDesc"></label>
</div>
</c:forEach>
</div>
</body>
</html>
4

1 回答 1

1

.citizenTypeDesc您可以遍历所有标签，而不是遍历所有标签.citizenTypeId。测试每个值是否与参数匹配，然后设置同一父元素内的标签。

function GetCitizenTypeDescription(citizenTypeId){                 
  $.ajax({
    type:'GET',
    url:'getCitizenTypeDescription.htm',
    data:{citizenTypeId:citizenTypeId},
    dataType: 'text',
    success: function (data) {       
       $('.citizenTypeId').each(function(i){                
             //does this value match the parameter
             if($(this).val() === citizenTypeId){ 
                 //find the parent div, in this case .table
                 var parent = $(this).parent();
                 //search for a child with class .citizenTypeDesc
                 var thisCitizenTypeDesc = parent.children('.citizenTypeDesc');

                 thisCitizenTypeDesc.text(data);
             }
       });
    }
  });
}
于 2013-03-13T17:26:39.637 回答