微信小程式開發（一）——使用ssh（struts2+hibernate+spring）框架實現後臺與微信前臺進行通訊
阿新 • • 發佈：2019-01-06
使用ssh框架實現對微信小程式前臺的通訊，做到前後臺分離，後臺頁面都為靜態頁面，通過用json來現實與前臺通訊（面向介面程式設計）。在這次因為只為了實現通訊所以沒有用hibernate。只用了struts2+spring，也是ssh框架中struts和spring整合。實現了前臺傳送使用者名稱密碼，後臺返回連線成功。
專案環境（Tomcat8.5+myeclipse2016 ci）
一、所需要匯入的包。
1.struts2的包
2.spring的包
二、目錄包結構
三、dao層程式碼
1.UserDao.java
package com.demo.dao; import com.demo.po.User; public interface UserDao { String toGet(User user);//獲取前臺傳送的使用者名稱密碼 }
2.UserDaoImp.java
package com.demo.dao; import org.springframework.stereotype.Repository; import com.demo.po.User; @Repository public class UserDaoImp implements UserDao{ @Override public String toGet(User user) { // TODO Auto-generated method stub String msg = user.getUsername()+user.getUserpass(); return msg; } }
四、po層程式碼
1.JsonResult.java
package com.demo.po; import java.util.HashMap; import java.util.Map; public class JsonResult { private String result; private Map<String,Object> map = new HashMap<String, Object>(); public String getResult() { return result; } public void setResult(String result) { this.result = result; } public Map<String, Object> getMap() { return map; } public void setMap(Map<String, Object> map) { this.map = map; } public String getTest(){ return "我伺服器，你連線到我了"; } }
2.User.java
package com.demo.po;
public class User {
private String username;
private String userpass;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getUserpass() {
return userpass;
}
public void setUserpass(String userpass) {
this.userpass = userpass;
}
public User(String username,String userpass){
super();
this.username=username;
this.userpass=userpass;
}
public User(){
super();
}
}五、server層
1.UserService.java
package com.demo.server;
import com.demo.dao.UserDao;
import com.demo.po.User;
public interface UserService {
public UserDao getUserDao();
public void setUserDao(UserDao userDao);
public String toGet(User user);
}2.UserServiceImp.java
package com.demo.server;
import javax.annotation.Resource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.demo.dao.UserDao;
import com.demo.po.User;
@Service
public class UserServiceImp implements UserService {
@Autowired
private UserDao userDao;
public UserDao getUserDao() {
return userDao;
}
public void setUserDao(UserDao userDao) {
this.userDao = userDao;
}
public String toGet(User user){
String msg = userDao.toGet(user);
if(msg==null)
return "failed";
else
return "success";
}
}六、Action層
1.UserAction.java
package com.demo.testAction;
import java.util.Map;
import java.util.logging.Logger;
import org.apache.struts2.interceptor.RequestAware;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import com.demo.po.JsonResult;
import com.demo.po.User;
import com.demo.server.UserService;
import com.google.gson.Gson;
@Controller
public class UserAction implements RequestAware {
@Autowired
private UserService userService;
private Map<String,Object>request;
private JsonResult jsonResult;
private User user;
Logger log = Logger.getLogger(this.getClass().getName());
public JsonResult getJsonResult() {
return jsonResult;
}
public void setJsonResult(JsonResult jsonResult) {
this.jsonResult = jsonResult;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public Map<String, Object> getRequest() {
return request;
}
@Override
public void setRequest(Map<String, Object> arg0) {
// TODO Auto-generated method stub
request=arg0;
}
public String toget(){
jsonResult = new JsonResult();
log.info("userService ---->" + userService );
String msg = userService.toGet(user);
jsonResult.setResult(msg);
/*Map map = new HashMap<String, Object>();
map.put("user", user);
jsonResult.setMap(map);*/
log.info(new Gson().toJson(jsonResult));
return "success";
}
}七、spring的配置檔案applicationContext.xml編寫（因為使用註解，所以配置檔案只寫了自動掃描包）
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<context:annotation-config/>
<context:component-scan base-package="com.demo" />
</beans>八、struts.xml配置檔案編寫
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="default" namespace="/" extends="struts-default,json-default">
<action name="toget" class="com.demo.testAction.UserAction" method="toget">
<!-- 頁面顯示json -->
<result name="success" type="json">
<param name="root">jsonResult</param>
</result>
</action>
</package>
</struts>
九、微信小程式前臺程式碼
1.index.xml（點選按鈕傳送請求）
<!--index.wxml-->
<view class="container">
<view class="userinfo">
<button bindtap='requestdemo'> 傳送請求 </button>
</view>
</view>2.index.js
//index.js
//獲取應用例項
const app = getApp()
Page({
data: {
},
//事件處理函式
requestdemo:function(){
wx:wx.request({
url: 'http://localhost:8080/serverDemo/toget.action',
data: {
'user.username':'qwe',
'user.userpass': '123'
},
header: {
'content-type': 'application/json' // 預設值
},
method: 'GET',
dataType: 'json',
responseType: 'text',
success: function(res) {
console.log(res.data);
},
fail: function(res) {
console.log("連線失敗");
}
})
},
onLoad: function () {
}
})
3.index.wxss
/**index.wxss**/
.userinfo {
display: flex;
flex-direction: column;
align-items: center;
}
.userinfo-avatar {
width: 128rpx;
height: 128rpx;
margin: 20rpx;
border-radius: 50%;
}
.userinfo-nickname {
color: #aaa;
}
.usermotto {
margin-top: 200px;
}十、效果展示
ps:本人也是剛學習完不久如果有說錯和不足的地方歡迎指出