controller类-----------------------------
@RequestMapping(value="/emp") public class EmpAction { /* * 返回json数据 * 1.导入jar包：jackson-core-asl.jar jackson-mapper-asl.jar * 2.springmvc配置文件 * 3. */ @RequestMapping(value="/bean2json") public @ResponseBody Emps bean2json(){ Emps emps=new Emps(); emps.setId(1); emps.setName("李永"); emps.setSex("男"); emps.setDate(new Date()); return emps; } @RequestMapping(value="/list2json") public @ResponseBody List<Emps> list2json(){ List<Emps> empsList=new ArrayList<Emps>(); Emps emps1=new Emps(); emps1.setId(1); emps1.setName("李永"); emps1.setSex("男"); emps1.setDate(new Date()); Emps emps2=new Emps(); emps2.setId(2); emps2.setName("李永2"); emps2.setSex("男2"); emps2.setDate(new Date()); Emps emps3=new Emps(); emps3.setId(3); emps3.setName("李永3"); emps3.setSex("男3"); emps3.setDate(new Date()); empsList.add(emps1); empsList.add(emps2); empsList.add(emps3); return empsList; } @RequestMapping(value="/map2json") public @ResponseBody Map<String,Emps> map2json(){ Map<String,Emps> empsMap=new LinkedHashMap<String,Emps>(); Emps emps1=new Emps(); emps1.setId(1); emps1.setName("李永"); emps1.setSex("男"); emps1.setDate(new Date()); Emps emps2=new Emps(); emps2.setId(2); emps2.setName("李永2"); emps2.setSex("男2"); emps2.setDate(new Date()); empsMap.put("one", emps1); empsMap.put("two", emps2); return empsMap; } }
--------------------------------springmvc配置文件-----------------------------------
<context:component-scan base-package="cn.gdpe.spring"></context:component-scan>
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></bean> </list> </property> </bean>--------------------------------页面---------------------------------------------------------
<html>
<head> <title>My JSP 'success.jsp' starting page</title> <script type="text/javascript" src="jquery-1.8.2.js"></script> </head> <body> <input type="button" value="Emp转json" /> <input type="button" value="List<Emp>转json" /> <input type="button" value="Map<String,Object>转json" /> </body> <script type="text/javascript"> /* function createXmlHttp(){ var xmlhttp; if (window.XMLHttpRequest){ xmlhttp=new XMLHttpRequest(); }else{ xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } return xmlhttp; } var xmlHttp; function ajaxObject(){ xmlHttp=createXmlHttp(); var url="${pageContext.request.contextPath}/emp/map2json.action"; xmlHttp.open("get", url, true); xmlHttp.onreadystatechange = updatePage; // xmlHttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded'); xmlHttp.send(null); } function updatePage() { if (xmlHttp.readyState == 4) { if (xmlHttp.status == 200) { var response = xmlHttp.responseText; var jsons=eval("(" + response + ")"); alert(response); } else{ alert("status is " + xmlHttp.status); } } } $(function(){ $("input:last").click(function(){ ajaxObject(); }); }) */ $(function(){ $("input:first").click(function(){ $.ajax({ type:"POST", url:"${pageContext.request.contextPath}/emp/bean2json.action", //1,dataType:"json", dataType:"text", success:function(data){ /*1,alert(dates.id);*/ var json=$.parseJSON(data); var hiredate=json.date; var date=new Date(hiredate); var now=date.getFullYear()+"年"+(date.getMonth()+1)+"月"+date.getDate()+"日"; alert(now); } }); }); $("input:eq(1)").click(function(){ $.ajax({ type:"POST", url:"${pageContext.request.contextPath}/emp/list2json.action", dataType:"json", success:function(data){ for(var i=0;i<data.length;i++){ alert(data[i].id+data[i].name+data[i].sex); } } }); }); $("input:last").click(function(){ $.ajax({ type:"POST", url:"${pageContext.request.contextPath}/emp/map2json.action", dataType:"json", success:function(data){ alert(data["one"].name); } }); }); }) </script> </html>---------------------------------实体类-------------------------------------------------------
public class Emps {
private int id; private String name; private String sex; private Date date; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public Date getDate() { return date; } public void setDate(Date date) { this.date = date; } }