例如 Model类如下面，Teacher，public class Teacher{ private Integer id。 priavte String name; private School school; } 而School， public class School{ private Integer id； priavte String name; } 上面的Teacher，School省去了getter和setter方法。
action类例如以下
public class TeacherAction extends ActionSupport implents ModelDriven<Teacher>{ public String saveTeacher(){ if(.teacher.getSchool() != null && teacher.getSchool().getId() != null){ teacher.setSchool(schoolDao.load(teacher.getSchool().getId())); } Teacher teacher= teacherDao.save(teacher); return SUCCESS; } }
该action配置例如以下 <package name="ajax" extends="json-default"> <action name=teacher_"*" class="com.zxt.action.TeacherAction method={1}"> <!-- 将返回类型设置为json --> <result type="json"></result> </action> </package> jsp格式例如以下： <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>測试</title> <script type="text/javas cript" src="include/js/jquery-1.4.2.min.js"></script> <script type="text/javas cript"> $(function() { $("#tj").click(function() { //提交的參数，name和inch是和struts action中相应的接收变量 var params = { “ school.id” : $("#xm").val(), “ name” : $("#xm1").val( }; $.ajax({ type: "POST", url: "teacher_findTeacherByScholl.action", data: params, dataType:"text", //ajax返回值设置为text（json格式也可用它返回，可打印出结果。也可设置成json）
success: function(json){ var obj = $.parseJSON(json); //使用这种方法解析json var state_value = obj.teacher //result是和action中定义的result变量的get方法相应的 alert(state_value); }, error: function(json){ alert("json=" + json); return false; } }); }); }); </script> </head> <body> <span>学校：</span><input id="xm" type="text"> <br/> <span>名字：</span><input id="xm1" type="text"> <br/> <input type="button" value="提交" id="tj"> </body> </html>
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转载于:https://www.cnblogs.com/bhlsheji/p/4709929.html
