在JSON响应中搜索关键字

如何解决在JSON响应中搜索关键字

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{
    \"PatientSearchResult\": {
        \"Patient\": [
            {
                \"AccountBalanceCalcMethod\": 2,\"AlternatePatientID\": 0,\"AssignmentOfBenifits\": 0,\"CellPhoneNumber1\": null,\"CellPhoneNumber2\": null,\"Citizenship\": 0,\"Credential\": 0,\"DateOfBirth\": null,\"Deceased\": 0,\"DeceasedDate\": \"/Date(-62135578800000-0500)/\",\"DoesPatientHaveResidentProof\": false,\"DriversLicenseNumber\": null,\"DriversLicenseState\": 0,\"EmailAddress1\": null,\"EmailAddress2\": null,\"Enabled\": false,\"Ethnicity\": 0,\"Firstname\": \"2914 FirstName\",\"FullName\": \"2914 FirstName 2914 LastName\",\"Gender\": 2,\"GuarantorID\": 0,\"IsFinancialRisk\": false,\"IsPatient\": false,\"LastName\": \"2914 LastName\",\"LocalName\": null,\"MaidenName\": null,\"MaritalStatus\": 0,\"MiddleName1\": null,\"MiddleName2\": null,\"MothersMaidenName\": null,\"Nickname\": null,\"NoteText\": null,\"Notes\": null,\"Occupation\": null,\"OriginalPatientID\": 0,\"PagerNumber\": null,\"PersonID\": 0,\"PharmacyName\": null,\"PharmacyNoteID\": 0,\"PhoneNumber1\": null,\"PhoneNumber2\": null,\"Prefix\": 0,\"PrimaryLanguage\": 0,\"PrimaryPhoneNumber\": null,\"PrimaryPhysID\": 0,\"PrimaryWorkPhone\": null,\"Race\": 0,\"ReleaseOfInformation\": false,\"Religion\": 0,\"ResidentialAddress\": null,\"SSN\": null,\"SealedFlagID\": 0,\"SecondaryLanguage\": 0,\"StudentStatusID\": 0,\"Suffix\": 0,\"PatientID\": 2914
            },{
                \"AccountBalanceCalcMethod\": 2,\"DateOfBirth\": \"/Date(378709200000-0500)/\",\"Firstname\": \"4261 FirstName\",\"FullName\": \"4261 FirstName 4261 LastName\",\"LastName\": \"4261 LastName\",\"PatientID\": 4261
            },\"DateOfBirth\": \"/Date(1136264400000-0500)/\",\"Firstname\": \"Bo\",\"FullName\": \"Bo Ray\",\"LastName\": \"Ray\",\"PatientID\": 19369
            },\"DateOfBirth\": \"/Date(-2192126400000-0400)/\",\"Firstname\": \"Mark\",\"FullName\": \"Mark Noyce\",\"LastName\": \"Noyce\",\"PatientID\": 19387
            },\"DateOfBirth\": \"/Date(-5347800000000-0400)/\",\"Firstname\": \"Kevin\",\"FullName\": \"Kevin Noyce\",\"PatientID\": 19388
            },\"DateOfBirth\": \"/Date(-381697200000-0500)/\",\"Firstname\": \"Scott\",\"FullName\": \"Scott Noyce\",\"PatientID\": 19389
            },\"DateOfBirth\": \"/Date(-445806000000-0500)/\",\"Firstname\": \"John\",\"FullName\": \"John Doe\",\"LastName\": \"Doe\",\"PatientID\": 19395
            },\"DateOfBirth\": \"/Date(-880830000000-0500)/\",\"Firstname\": \"Dagwood\",\"FullName\": \"Dagwood Bumstead\",\"LastName\": \"Bumstead\",\"PatientID\": 19414
            },\"Firstname\": \"Clyde\",\"FullName\": \"Clyde Barrow\",\"LastName\": \"Barrow\",\"PatientID\": 19415
            },\"DateOfBirth\": \"/Date(-249678000000-0500)/\",\"Firstname\": \"Fred\",\"FullName\": \"Fred Flintstone\",\"LastName\": \"Flintstone\",\"PatientID\": 19420
            }
        ]
    }
}

这是我得到的JSON响应。我正在此响应中搜索名字。

var json = JSON.parse(theResponse);
 for(var i=0; i<json.length; i++) {
   if(json.PatientSearchResult.Patient[i].Firstname === search.value) {
            /// Go a head
    }

在这里search.value拥有我要搜索的关键字。这是在JSON响应中搜索FirstName的方法。     

解决方法

这行是错的

for(var i=0; i<json.length; i++) {

您想看一下数组长度

var json = JSON.parse(theResponse);
var patients = json.PatientSearchResult.Patient;
for(var i=0; i<patients.length; i++) {
    if(patients[i].Firstname === search.value) {
        /// Go a head
    }
}

    ,John Cooper-通过DefiantJS（http://defiantjs.com），您可以使用XPath这样搜索JSON结构：

var data = {
   \"PatientSearchResult\": {
      \"Patient\": [
         { \"Firstname\": \"Bo\",\"FullName\": \"Bo Ray\",\"PatientID\": 19369 },{ \"Firstname\": \"Mark\",\"FullName\": \"Mark Noyce\",\"PatientID\": 19387 },{ \"Firstname\": \"Kevin\",\"FullName\": \"Kevin Noyce\",\"PatientID\": 19388 },{ \"Firstname\": \"Scott\",\"FullName\": \"Scott Noyce\",\"PatientID\": 19389 },{ \"Firstname\": \"John\",\"FullName\": \"John Doe\",\"PatientID\": 19395 },{ \"Firstname\": \"Dagwood\",\"FullName\": \"Dagwood Bumstead\",\"PatientID\": 19414 },{ \"Firstname\": \"Clyde\",\"FullName\": \"Clyde Barrow\",\"PatientID\": 19415 },{ \"Firstname\": \"Fred\",\"FullName\": \"Fred Flintstone\",\"PatientID\": 19420 }
      ]
   }
},res = JSON.search( data,\'//*[Firstname]\' );

看看这个小提琴： http://jsfiddle.net/hbi99/W4cL4/ 我已删除som JSON数据，以便于代码概述。使用完整的JSON数据，它的工作原理相同。 使用XPath Evaluator来了解XPath： http://www.defiantjs.com/#xpath_evaluator