Using Java reflection mechanism to realize list<map<string, object>> conversion to list<javabean>

Recently in the project with MyBatis, encountered the date format display to the Easyui problem, need to list<map<string, object>> into List<javabean> Finally found a method on the Internet:

The core approach is as follows:

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2. /**
4. * object>> data is converted to JavaBean data according to List<map<string
6. * @param datas
8. * @param beanclass
10. * @return
12. * @throws commonexception
14. */
16. Public list<t> Listmap2javabean (list<map<string, object>> datas, class<t> beanClass) Throws Commonexception {
18. //Return data collection
20. list<t> list = null;
22. //Object field name
24. String fieldname = "";
26. //object method name
28. String methodname = "";
30. //Object methods need to assign values
32. Object Methodsetvalue = "";
34. try {
36. List = new arraylist<t> ();
38. //Get all fields of the object
40. Field fields[] = Beanclass.getdeclaredfields ();
42. //Traverse data
44. for (map<string, object> mapdata:datas) {
46. //Create a generic type instance
48. T t = beanclass.newinstance ();
50. //Traverse all fields, corresponding to the configured fields and assign values
52. For (Field field:fields) {
54. //Get annotation configuration
56. JavaBean JavaBean = field.getannotation (JavaBean.   Class);
58. if (null! = JavaBean) { //has annotation configuration, next action
60. //Convert all to uppercase
62. String dbfieldname = Javabean.dbfieldname (). toUpperCase ();
64. //Get field name
66. FieldName = Field.getname ();
68. //Splicing Set method
70. MethodName = "Set" + strutil.capitalize (fieldname);
72. //Get the corresponding value in data
74. Methodsetvalue = Mapdata.get (dbfieldname);
76. //Assign To field
78. Method m = Beanclass.getdeclaredmethod (methodname, Field.gettype ());
80. M.invoke (t, Methodsetvalue);
82. }
84. }
86. //Deposit back to list
88. List.add (t);
90. }
92. } catch (Instantiationexception e) {
94. throw New Commonexception (E, "Create Beanclass instance exception");
96. } catch (Illegalaccessexception e) {
98. throw New Commonexception (E, "Create Beanclass instance exception");
100. } catch (SecurityException e) {
102. throw New Commonexception (E, "get [" + FieldName + "] Getter Setter Method Exception");
104. } catch (Nosuchmethodexception e) {
106. throw New Commonexception (E, "get [" + FieldName + "] Getter Setter Method Exception");
108. } catch (IllegalArgumentException e) {
110. throw New Commonexception (E, "[" + methodname + "] Method Assignment Exception");
112. } catch (InvocationTargetException e) {
114. throw New Commonexception (E, "[" + methodname + "] Method Assignment Exception");
116. }
118. //Return
120. return list;
122. }

Using Java reflection mechanism to realize list<map<string, object>> conversion to list<javabean>