在上篇的基础上
准备工作:
修改pom.xml
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< project xmlns = "http://maven.apache.org/POM/4.0.0" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation = "http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" > < modelVersion >4.0.0</ modelVersion > < groupId >com.github.carter659</ groupId > < artifactId >spring03</ artifactId > < version >0.0.1-SNAPSHOT</ version > < packaging >jar</ packaging > < name >spring03</ name > < url >http://maven.apache.org</ url > < parent > < groupId >org.springframework.boot</ groupId > < artifactId >spring-boot-starter-parent</ artifactId > < version >1.4.2.RELEASE</ version > </ parent > < properties > < project.build.sourceEncoding >UTF-8</ project.build.sourceEncoding > < java.version >1.8</ java.version > </ properties > < dependencies > < dependency > < groupId >org.springframework.boot</ groupId > < artifactId >spring-boot-starter-thymeleaf</ artifactId > </ dependency > < dependency > < groupId >org.springframework.boot</ groupId > < artifactId >spring-boot-devtools</ artifactId > < optional >true</ optional > </ dependency > </ dependencies > < build > < plugins > < plugin > < groupId >org.springframework.boot</ groupId > < artifactId >spring-boot-maven-plugin</ artifactId > </ plugin > </ plugins > </ build > </ project > |
修改App.java
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package com.github.carter659.spring03; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class App { public static void main(String[] args) { SpringApplication.run(App. class , args); } } |
新建“Order.java”类文件:
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package com.github.carter659.spring03; import java.util.Date; public class Order { public String no; public Date date; public int quantity; } |
说明一下:这里我直接使用public字段了,get/set方法就不写了。
新建控制器“MainController”:
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package com.github.carter659.spring03; import java.time.ZoneId; import java.util.HashMap; import java.util.Map; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.ResponseBody; @Controller public class MainController { @GetMapping ( "/" ) public String index() { return "index" ; } @GetMapping ( "/jquery" ) public String jquery() { return "jquery" ; } @GetMapping ( "/angularjs" ) public String angularjs() { return "angularjs" ; } @PostMapping ( "/postData" ) public @ResponseBody Map<String, Object> postData(String no, int quantity, String date) { System.out.println( "no:" + no); System.out.println( "quantity:" + quantity); System.out.println( "date:" + date); Map<String, Object> map = new HashMap<>(); map.put( "msg" , "ok" ); map.put( "quantity" , quantity); map.put( "no" , no); map.put( "date" , date); return map; } @PostMapping ( "/postJson" ) public @ResponseBody Map<String, Object> postJson( @RequestBody Order order) { System.out.println( "order no:" + order.no); System.out.println( "order quantity:" + order.quantity); System.out.println( "order date:" + order.date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate()); Map<String, Object> map = new HashMap<>(); map.put( "msg" , "ok" ); map.put( "value" , order); return map; } } |
新建jquery.html文件:
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<!DOCTYPE html> < html xmlns:th = "http://www.thymeleaf.org" > < head > < meta http-equiv = "Content-Type" content = "text/html; charset=UTF-8" /> < title >jquery</ title > < script src = "//cdn.bootcss.com/jquery/1.11.3/jquery.min.js" ></ script > < script type = "text/javascript" > /* <![CDATA[*/ function postData() { var data = 'no=' + $('#no').val() + '&quantity=' + $('#quantity').val() + '&date=' + $('#date').val(); $.ajax({ type : 'POST', url : '/postData', data : data, success : function(r) { console.log(r); }, error : function() { alert('error!') } }); } function postJson() { var data = { no : $('#no').val(), quantity : $('#quantity').val(), date : $('#date').val() }; $.ajax({ type : 'POST', contentType : 'application/json', url : '/postJson', data : JSON.stringify(data), success : function(r) { console.log(r); }, error : function() { alert('error!') } }); } /*]]> */ </ script > </ head > < body > no: < input id = "no" value = "No.1234567890" /> < br /> quantity: < input id = "quantity" value = "100" /> < br /> date: < input id = "date" value = "2016-12-20" /> < br /> < input value = "postData" type = "button" onclick = "postData()" /> < br /> < input value = "postJson" type = "button" onclick = "postJson()" /> </ body > </ html > |
新建“angularjs.html”文件:
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<!DOCTYPE html> < html xmlns:th = "http://www.thymeleaf.org" > < head > < meta http-equiv = "Content-Type" content = "text/html; charset=UTF-8" /> < title >angularjs</ title > < script src = "//cdn.bootcss.com/angular.js/1.5.6/angular.min.js" ></ script > < script type = "text/javascript" > var app = angular.module('app', []); app.controller('MainController', function($rootScope, $scope, $http) { $scope.data = { no : 'No.1234567890', quantity : 100, 'date' : '2016-12-20' }; $scope.postJson = function() { $http({ url : '/postJson', method : 'POST', data : $scope.data }).success(function(r) { $scope.responseBody = r; }); } }); </ script > </ head > < body ng-app = "app" ng-controller = "MainController" > no: < input id = "no" ng-model = "data.no" /> < br /> quantity: < input id = "quantity" ng-model = "data.quantity" /> < br /> date: < input id = "date" ng-model = "data.date" /> < br /> < input value = "postJson" type = "button" ng-click = "postJson()" /> < br /> < br /> < div >{{responseBody}}</ div > </ body > </ html > |
项目结构如下图:
一、结合jquery
运行App.java后进去“http://localhost:8080/jquery”页面
点击“postData”按钮:
jquery成功的调用了spring mvc的后台方法“public @ResponseBody Map<String, Object> postData(String no, int quantity, String date)”
这里,“date”参数我使用的是String类型,而并不是Date类型。因为大多数情况是使用对象形式来接收ajax客户端的值,所以我这里偷懒了,就直接使用String类型。如果想使用Date类型,则需要使用@InitBinder注解,后面的篇幅中会讲到,在这里就不再赘述。
另外,使用“thymeleaf”模板引擎在编写js时,“&”关键字要特别注意,因为“thymeleaf”模板引擎使用的是xml语法。因此,在<script>标签的开始——结束的位置要加“/*<![CDATA[*/ ...../*]]>*/”
例如:
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<script type= "text/javascript" > /*<![CDATA[*/ // javascript code ... /*]]>*/ </script> |
否则,运行“thymeleaf”模板引擎时就会出现错误“org.xml.sax.SAXParseException:...”
点击“postJson”按钮:
jquery则成功调用了后台“public @ResponseBody Map<String, Object> postJson(@RequestBody Order order)”方法,
并且参数“order”中的属性或字段也能被自动赋值,而Date类一样会被赋值。
注意的是:在使用jquery的$.ajax方法时,contentType参数需要使用“application/json”,而后台spring mvc的“postJson”方法中的“order”参数也需要使用@RequestBody注解。
二、结合angularjs
进入“后进去http://localhost:8080/angularjs”页面
点击“postJson”按钮:
使用angularjs后,依然能调用“public @ResponseBody Map<String, Object> postJson(@RequestBody Order order)”方法。
代码:https://github.com/carter659/spring-boot-03.git
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.cnblogs.com/GoodHelper/p/6185502.html