liferay 使用ajax请求

view.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>

<script type="text/javascript" src="/html/js/jquery-easyui-1.3.6/jquery.min.js"></script>

<portlet:defineObjects />
<portlet:resourceURL id="rentalsUserListURL" var="rentalsUserListURL"></portlet:resourceURL>

<script>
var rentalsUserListURL = "<%=rentalsUserListURL%>";
var namespace = '<portlet:namespace/>';

function testAjax2(){

$.ajax({
url : rentalsUserListURL,
type : "post",
dataType : "json",
data : {
<portlet:namespace/>id : 100,
<portlet:namespace/>version :'house'
},
success : function(versionData) {
console.info(versionData);
},
error : function(XMLHttpRequest,textStatus,errorThrown) {
console.info("测试失败: ");
}
});

}
</script>

MVCPortlet.java

@Override
public void serveResource(ResourceRequest resourceRequest,
ResourceResponse resourceResponse) throws IOException,
PortletException {

try {
super.serveResource(resourceRequest,resourceResponse);
HttpServletRequest request = PortalUtil.getHttpServletRequest(resourceRequest);
// 获取用户信息
User user = PortalUtil.getUser(request);
System.out.println("userId = " + user.getUserId() + "userName = " + user.getScreenName());

PrintWriter write = resourceResponse.getWriter();
String resourceID = resourceRequest.getResourceID();

System.out.println("ResourceID = " + resourceRequest.getResourceID());
System.out.println("id = " + resourceRequest.getParameter("id"));
System.out.println("version = " + resourceRequest.getParameter("version"));

// Map map = resourceRequest.getParameterMap();
//Map map = request.getParameterMap();
//
//for (Iterator iterator = map.entrySet().iterator(); iterator.hasNext();) {
//Map.Entry entry = (Entry) iterator.next();
//System.out.println("Key = " + entry.getKey() + ",Value = " + entry.getValue());
//}

// 获取参数键值名称
Enumeration<String> enu = request.getParameterNames();
while (enu.hasMoreElements()) {
// 取得参数名称列表
String paramName = (String) enu.nextElement();
// 处理本请求参数以及发送给第三方服务器的参数
String paramValue = request.getParameter(paramName);
System.out.println("Key = " + paramName + ",Value = " + paramValue);
}

System.out.println("id = " + request.getParameter("id"));
System.out.println("version = " + request.getParameter("version"));

if (resourceID.equals("rentalsUserListURL")){
write.write("{"message":"maomao","success":"true"}");
}
} catch (PortalException e) {
e.printStackTrace();
} catch (SystemException e) {
e.printStackTrace();
}
}

说明：

1.Portletextends MVCPortlet重新serveResource方法

2.ajax请求参数

data : {
<portlet:namespace/>id : 100,
<portlet:namespace/>version :'house'
},

红色部分是必须加上的，后台才能获取id和name参数，否则获取全是null，这是我在测试很久及查资料找到的

执行该方法：

下面是请求的数据及参数

Query String Parametersview sourceview URL encoded

p_p_id:rentalsusermanagement_WAR_ossportlet
p_p_lifecycle:2
p_p_state:normal
p_p_mode:view
p_p_resource_id:rentalsUserListURL
p_p_cacheability:cacheLevelPage
p_p_col_id:column-1
p_p_col_count:1

Form Dataview sourceview URL encoded

_rentalsusermanagement_WAR_ossportlet_id:100
_rentalsusermanagement_WAR_ossportlet_version:house

后台打印的数据

userId = 10436userName = kouht
ResourceID = rentalsUserListURL
id = 100
version = house
Key = id,Value = 100
Key = version,Value = house
id = 100
version = house

??

（编辑：李大同）

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