springmvc使用jQuery.datatable时遇到的错误

 1 1正确时返回 josn结果：
 2 
 3 {"aaData":[{"age":31,"id":100000,"name":"wwecs","sex":"man"},{"age":1,"id":100001,"name":"second","sex":"man"},{"age":2,"id":100002,"name":"secondone","sex":"man"},{"age":3,"id":100003,"name":"thridone","sex":"man"},{"age":3,"id":100004,"name":"eeeeee","sex":"man"},{"age":32,"id":100005,"name":"t80aaa","sex":"man"},{"age":100,"id":100006,"name":"test0001","sex":"man"}],"iTotalDisplayRecords":10,"iTotalRecords":10,"sEcho":"1"}
 4 
 5 
 6 2  页面显示处理中（processing），列表空白，其实有返回数据，josn结果：
 7 {"aaData":[{"age":31,"id":100000,"name":"wwecs","sex":"man"},{"age":1,"id":100001,"name":"second","sex":"man"},{"age":2,"id":100002,"name":"secondone","sex":"man"},{"age":3,"id":100003,"name":"thridone","sex":"man"},{"age":3,"id":100004,"name":"eeeeee","sex":"man"},{"age":32,"id":100005,"name":"t80aaa","sex":"man"},{"age":100,"id":100006,"name":"test0001","sex":"man"}],"iTotalDisplayRecords":10,"iTotalRecords":10,"sEcho":"1"}
 8 
 9 3 同上一致 
10 {"aaData":"[{"age":31,"id":100000,"name":"wwecs","sex":"man"},{"age":1,"id":100001,"name":"second","sex":"man"},{"age":2,"id":100002,"name":"secondone","sex":"man"},{"age":3,"id":100003,"name":"thridone","sex":"man"},{"age":3,"id":100004,"name":"eeeeee","sex":"man"},{"age":32,"id":100005,"name":"t80aaa","sex":"man"},{"age":100,"id":100006,"name":"test0001","sex":"man"}]","iTotalDisplayRecords":10,"iTotalRecords":10,"sEcho":"1"}
11 
12 
13 A1  提示“ DataTables warning (table id = 'example1'): Cannot reinitialise DataTable. To retrieve the DataTables object for this table, pass no arguments or...” 时
14 A2  或者提示“  DataTables warning(table id='example1'):Requested unknown parameter '1' from the data source for row 0”
15 
16 时返回的json结果：
17 
18 {"aaData":"[{"age":31,"id":100000,"name":"wwecs","sex":"man"},{"age":1,"id":100001,"name":"second","sex":"man"},{"age":2,"id":100002,"name":"secondone","sex":"man"},{"age":3,"id":100003,"name":"thridone","sex":"man"},{"age":3,"id":100004,"name":"eeeeee","sex":"man"},{"age":32,"id":100005,"name":"t80aaa","sex":"man"},{"age":100,"id":100006,"name":"test0001","sex":"man"}]","iTotalDisplayRecords":10,"iTotalRecords":10,"sEcho":"1"}
19 
20

附加去掉 “” 和“[” "]"的方法：

1             returnstr=returnstr.replaceAll("\\", "");
2             returnstr = returnstr.replace(Matcher.quoteReplacement("]""), "]");
3             returnstr = returnstr.replace(Matcher.quoteReplacement(""["), "[");

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原文地址：https://www.cnblogs.com/rojas/p/4005045.html