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JSON.parse 和 eval 函数都出错。我使用http://jsonlint.com/验证了 JSON，知道该怎么做吗？ 

<script type="text/javascript"> 

var obj = JSON.parse('{ "defaults": { "recordtext": "View", "emptyrecords": "No records to view", "loadtext": "Loading...", "pgtext": "Page" }, "search": { "caption": "Search...", "Find": "Find", "Reset": "Reset", "odata": [ "equal", "not equal", "less", "less or equal", "greater", "greater or equal", "begins with", "does not begin with", "is in", "is not in", "ends with", "does not end with", "contains", "does not contain" ], "groupOps": [ { "op": "AND", "text": "all" }, { "op": "OR", "text": "any" } ], "matchText": " match", "rulesText": " rules" }, "edit": { "addCaption": "Add Record", "editCaption": "Edit Record", "bSubmit": "Submit", "bCancel": "Cancel", "bClose": "Close", "saveData": "Data has been changed! Save changes?", "bYes": "Yes", "bNo": "No", "bExit": "Cancel", "msg": { "required": "Field is required", "number": "Please, enter valid number", "minValue": "value must be greater than or equal to ", "maxValue": "value must be less than or equal to", "email": "is not a valid e-mail", "integer": "Please, enter valid integer value", "date": "Please, enter valid date value", "url": "is not a valid URL. Prefix required (\"http://\" or \"https://\")", "nodefined": " is not defined!", "novalue": " return value is required!", "customarray": "Custom function should return array!", "customfcheck": "Custom function should be present in case of custom checking!" } }, "view": { "caption": "View Record", "bClose": "Close" }, "del": { "caption": "Delete", "msg": "Delete selected record(s)?", "bSubmit": "Delete", "bCancel": "Cancel" }, "nav": { "edittext": "", "edittitle": "Edit selected row", "addtext": "", "addtitle": "Add new row", "deltext": "", "deltitle": "Delete selected row", "searchtext": "", "searchtitle": "Find records", "refreshtext": "", "refreshtitle": "Reload Grid", "alertcap": "Warning", "alerttext": "Please, select row", "viewtext": "", "viewtitle": "View selected row" }, "col": { "caption": "Select columns", "bSubmit": "Ok", "bCancel": "Cancel" }, "errors": { "errcap": "Error", "nourl": "No url is set", "norecords": "No records to process", "model": "Length of colNames <> colModel!" }, "formatter": { "integer": { "thousandsSeparator": " ", "defaultValue": "0" }, "number": { "decimalSeparator": ".", "thousandsSeparator": " ", "decimalPlaces": 2, "defaultValue": "0.00" }, "currency": { "decimalSeparator": ".", "thousandsSeparator": " ", "decimalPlaces": 2, "prefix": "", "suffix": "", "defaultValue": "0.00" }, "date": { "dayNames": [ "Sun", "Mon", "Tue", "Wed", "Thr", "Fri", "Sat", "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ], "monthNames": [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ], "AmPm": [ "am", "pm", "AM", "PM" ], "srcformat": "Y-m-d", "newformat": "m/d/Y", "masks": { "ISO8601Long": "Y-m-d H:i:s", "ISO8601Short": "Y-m-d", "ShortDate": "n/j/Y", "LongDate": "l, F d, Y", "FullDateTime": "l, F d, Y g:i:s A", "MonthDay": "F d", "ShortTime": "g:i A", "LongTime": "g:i:s A", "SortableDateTime": "Y-m-d\\TH:i:s", "UniversalSortableDateTime": "Y-m-d H:i:sO", "YearMonth": "F, Y" }, "reformatAfterEdit": false }, "baseLinkUrl": "", "showAction": "", "target": "", "checkbox": { "disabled": true }, "idName": "id" }, "emptyrecords": "test" }');
var obj2 = eval ( '(' + '{ "defaults": { "recordtext": "View", "emptyrecords": "No records to view", "loadtext": "Loading...", "pgtext": "Page" }, "search": { "caption": "Search...", "Find": "Find", "Reset": "Reset", "odata": [ "equal", "not equal", "less", "less or equal", "greater", "greater or equal", "begins with", "does not begin with", "is in", "is not in", "ends with", "does not end with", "contains", "does not contain" ], "groupOps": [ { "op": "AND", "text": "all" }, { "op": "OR", "text": "any" } ], "matchText": " match", "rulesText": " rules" }, "edit": { "addCaption": "Add Record", "editCaption": "Edit Record", "bSubmit": "Submit", "bCancel": "Cancel", "bClose": "Close", "saveData": "Data has been changed! Save changes?", "bYes": "Yes", "bNo": "No", "bExit": "Cancel", "msg": { "required": "Field is required", "number": "Please, enter valid number", "minValue": "value must be greater than or equal to ", "maxValue": "value must be less than or equal to", "email": "is not a valid e-mail", "integer": "Please, enter valid integer value", "date": "Please, enter valid date value", "url": "is not a valid URL. Prefix required (\"http://\" or \"https://\")", "nodefined": " is not defined!", "novalue": " return value is required!", "customarray": "Custom function should return array!", "customfcheck": "Custom function should be present in case of custom checking!" } }, "view": { "caption": "View Record", "bClose": "Close" }, "del": { "caption": "Delete", "msg": "Delete selected record(s)?", "bSubmit": "Delete", "bCancel": "Cancel" }, "nav": { "edittext": "", "edittitle": "Edit selected row", "addtext": "", "addtitle": "Add new row", "deltext": "", "deltitle": "Delete selected row", "searchtext": "", "searchtitle": "Find records", "refreshtext": "", "refreshtitle": "Reload Grid", "alertcap": "Warning", "alerttext": "Please, select row", "viewtext": "", "viewtitle": "View selected row" }, "col": { "caption": "Select columns", "bSubmit": "Ok", "bCancel": "Cancel" }, "errors": { "errcap": "Error", "nourl": "No url is set", "norecords": "No records to process", "model": "Length of colNames <> colModel!" }, "formatter": { "integer": { "thousandsSeparator": " ", "defaultValue": "0" }, "number": { "decimalSeparator": ".", "thousandsSeparator": " ", "decimalPlaces": 2, "defaultValue": "0.00" }, "currency": { "decimalSeparator": ".", "thousandsSeparator": " ", "decimalPlaces": 2, "prefix": "", "suffix": "", "defaultValue": "0.00" }, "date": { "dayNames": [ "Sun", "Mon", "Tue", "Wed", "Thr", "Fri", "Sat", "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ], "monthNames": [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ], "AmPm": [ "am", "pm", "AM", "PM" ], "srcformat": "Y-m-d", "newformat": "m/d/Y", "masks": { "ISO8601Long": "Y-m-d H:i:s", "ISO8601Short": "Y-m-d", "ShortDate": "n/j/Y", "LongDate": "l, F d, Y", "FullDateTime": "l, F d, Y g:i:s A", "MonthDay": "F d", "ShortTime": "g:i A", "LongTime": "g:i:s A", "SortableDateTime": "Y-m-d\\TH:i:s", "UniversalSortableDateTime": "Y-m-d H:i:sO", "YearMonth": "F, Y" }, "reformatAfterEdit": false }, "baseLinkUrl": "", "showAction": "", "target": "", "checkbox": { "disabled": true }, "idName": "id" }, "emptyrecords": "test" }' + ')');

</script>
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2 回答 2

4

您没有正确转义引号，您需要另一个反斜杠；

这是错误的；

JSON.parse('{ "fails" : "\"http://\" or \"https://\"" }')

应该是这样的；

JSON.parse('{ "passes" : "\\"http://\\" or \\"https://\\"" }')
于 2012-12-13T22:49:49.490 回答
2

当某些东西是有效的 JSON 时，它基本上意味着你可以这样写：

var xx = <that-thing-you-validated>;

但是，JSON.parse()需要一个 JSON 格式的字符串，这是不一样的。观察：

var yy = {text: "hello \"world\""};
console.log(JSON.stringify(yy));
// output: "{"text":"hello \"world\""}"

好的，让我们复制/粘贴它，并将外部双引号替换为单引号（因为我们不想转义内部的双引号）。

console.log('{"text":"hello \"world\""}');
// output: {"text":"hello "world""}

哇，反斜杠怎么了？！要在 JavaScript 中创建包含反斜杠的字符串文字，也需要对其进行转义：

console.log('{"text":"hello \\"world\\""}');
// output: {"text":"hello \"world\""}

它现在有效吗？

JSON.parse('{"text":"hello \\"world\\""}');
// output: Object

是的！:)

于 2012-12-13T23:04:35.400 回答