[英]Calling rest webservice using jquery ajax?
I tried couple of tutorial to call rest web-service using jQuery ajax call, but I am not getting the response. 我尝试了几本教程,以使用jQuery ajax调用来调用其余的Web服务,但没有得到响应。
But When I directly hitting the url in browser I am getting the response ,but unable to get same json response using ajax call,always going in the error block. 但是,当我直接在浏览器中访问url时,我得到响应,但是无法使用ajax调用获得相同的json响应,总是进入错误块。 (tomcat is running on port 8888)
(tomcat在端口8888上运行)
http://localhost:8888/WebService_2/rest/webservice http:// localhost:8888 / WebService_2 / rest / webservice
Index.jsp file. Index.jsp文件。
<%@ 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=UTF-8">
<title>Insert title here</title>
</head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<body>
<table>
<tr>
<td><input type="button" value="submit" id="submit"> </td>
</tr>
</table>
</body>
<script type="text/javascript">
$(document).ready(function(){
$("#submit").click(function(){
$.ajax({
type: "GET",
dataType:"json",
contentType: "application/json; charset=utf-8",
url: "http://localhost:8888/WebService_2/rest/webservice",
success: function(data1) {
console.log("response:" + data1);
},
error: function(jqXHR, textStatus, errorThrown) {
console.log(' Error in processing!');
}
});
});
});
</script>
</html>
WebSerivce Class. WebSerivce类。
package com.app.rest;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
@Path("/webservice")
public class WebSerivce {
@GET
@Produces(MediaType.APPLICATION_JSON)
public String getResponse(){
return "Web Service Response Call " ;
}
}
web.xml web.xml
<servlet>
<servlet-name>jersey-serlvet</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>com.app.rest</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jersey-serlvet</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
Got the answer after some google... I have used the google jar for JSON conversion 一些谷歌后得到答案...我用谷歌罐进行JSON转换
Pom.xml Pom.xml
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.2.4</version>
</dependency>
WebService.class WebService.class
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
@Path("/webservice")
public class WebService {
@GET
@Produces(MediaType.APPLICATION_JSON)
public Object getResponse(){
//firstName,LastName,Age,Id
Student std1 = new Student("ik","test",22,2);
Student std2 = new Student("John","Vector",23,3);
Student std3 = new Student("iks","Roy",25,4);
List<Student> stuList = new ArrayList<Student>();
stuList.add(std1);
stuList.add(std2);
stuList.add(std3);
Gson gson = new GsonBuilder().create();
return gson.toJson(stuList);
}
}
Index.jsp Index.jsp
<%@ 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=UTF-8">
<title>Insert title here</title>
</head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<body>
<form method="get">
<table>
<tr>
<td><input type="button" value="submit" id="submit"> </td>
<div id="data"></div>
</tr>
</table>
</form>
</body>
<script type="text/javascript">
$(document).ready(function(){
var val = "";
$("#submit").click(function(event){
event.preventDefault();
$.ajax({
type: "GET",
dataType:"json",
url: "rest/webservice",
success: function(data) {
console.log("response:" + data);
$.each(data, function(j, pdata) {
val= val + "[ "+pdata.firstName +" " + pdata.lastName +"]";
});
$("#data").text(val);
},
error: function(jqXHR, textStatus, errorThrown) {
console.log(' Error in processing! '+textStatus);
}
});
});
});
</script>
</html>
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.