jquery调后台服务

来源：互联网发布：颐和园结局知乎编辑：程序博客网时间：2024/06/04 22:46

private void processRequest(final HttpServletRequest req, final HttpServletResponse resp) {
try {
final Map<String, Object[]> params = new HashMap<String, Object[]>();
params.putAll(req.getParameterMap());
String command=params.get("command")[0].toString();
String username=params.get("username")[0].toString();
String password=params.get("password")[0].toString();
String result = null;
ApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(this.getServletContext());
PropertyPlaceholderConfigurer propertyConfigurer = (PropertyPlaceholderConfigurer)ctx.getBean("propertyConfigurer");
BasicDataSource ds = (BasicDataSource)ctx.getBean("dataSource");
String dbdriver = ds.getDriverClassName();
String dburl = ds.getUrl();
String dbuser = ds.getUsername();
String dbpass = ds.getPassword();
userService = (UserService)ctx.getBean("userService");
//userDao = (UserDao)ctx.getBean("userDao");
//WebApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(this.getServletContext());
//UserService userService = (UserService)ctx.getBean("userService");
User user = userService.getUserById(1);
if("login".compareTo(command)==0) {
result = userService.login(username, password);
}
resp.setContentType("application/json; charset=UTF-8");
resp.setStatus(HttpServletResponse.SC_OK);
resp.getWriter().print("{\"result\":\"" + result + "\"}");
} catch (IOException e) {

e.printStackTrace();
}
return;

}

<body>

登录名：<input type="text" id="username">
密码：<input type="password" id="password">
<button id="login">登陆</button>

</body>

/**
*
*/
/*jquery函数*/

(function($, window, document,undefined) {

function fun1() {
$("div").css("color", "red");
};

function login(name, password){
var data = {
username: name,
password: password
};

$.ajax( {
type : "POST",
url : "/cids/api?command=login&response=json",
data: data,
dataType: "json",
async: false,
success : function(data) {
if(data.result == "true"){
alert("登录成功！");
}
else{
alert("登录失败！");
}
if(data.session =="1234567890"){
alert("1234567890");
}
},
error :function(){
alert("网络连接出错！");
}
});
}

$(document).ready(function() {
$("#login").click(function() {
login($("#username").val(), $("#password").val());
});
})

})(jQuery, window, document);

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