原創做品,容許轉載,轉載時請務必聲明做者信息和本聲明。http://www.cnblogs.com/zhu520/p/8027036.html html
本人小白,那個大神看到有問題可指出,謝謝。。。。java
一:我使用的工具 myeclipse ,mysql ,Android studio mysql
二:服務器(後臺)myeclipseandroid
=========
========》
web
1):先配置先正則表達式
a: web.xmlspring
這裏的 <servlet-mapping> 我多設置一個 <url-pattern>*.json</url-pattern>用來區分是前臺仍是後臺,這是個人習慣,你也能夠不要,本身喜歡sql
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <display-name></display-name> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml, classpath:spring-mybatis.xml</param-value> </context-param> <listener> <description>spring監聽器</description> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <servlet> <description>spring mvc servlet</description> <servlet-name>springMvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <description>spring mvc 配置文件</description> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <init-param> <param-name>activeReverseAjaxEnabled</param-name> <param-value>true</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springMvc</servlet-name> <!-- 此處配置成*.do,對應struts的後綴習慣 --> <url-pattern>*.do</url-pattern> <!-- 此處配置成*.json,是爲了可以截獲"../*.json"格式的訪問(例如android客戶端) --> <url-pattern>*.json</url-pattern> </servlet-mapping> <filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
b: applicationContext.xml 數據庫
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd"> <!-- 開啓註解 --> <context:annotation-config /> <!-- 自動掃描 --> <context:component-scan base-package="zhu.dao,zhu.service"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Repository" /> <context:include-filter type="annotation" expression="org.springframework.stereotype.Service" /> </context:component-scan> </beans>
c:jdbc.properties ==>這裏的連接mysql ,數據庫記得改,看本身的是那個數據庫每次express
driverClassName=com.mysql.jdbc.Driver url=jdbc\:mysql\://localhost\:3306/jdbc01?useUnicode\=true&characterEncoding\=utf-8 username=root password=root validationQuery=SELECT 1 # \u6570\u636e\u5e93\u914d\u7f6e jdbc.driverClass=com.mysql.jdbc.Driver jdbc.url=jdbc\:mysql\://localhost\:3306/jdbc01?useUnicode\=true&characterEncoding\=utf-8&zeroDateTimeBehavior\=convertToNull jdbc.user=root jdbc.password=root #\u5305\u6587\u4ef6\u4f4d\u7f6e targetProject=THIS4 package.model=zhu.po package.sql.mapper=zhu.mapper package.dao.mapper=zhu.dao
d:log4j.properties
##### \u65e5\u5fd7\u914d\u7f6e\u8d44\u6e90\u6587\u4ef6\uff1a ##### \u63cf\u8ff0\u65e5\u5fd7\u8bb0\u5f55\u76f8\u5173\u914d\u7f6e\u4fe1\u606f log4j.rootCategory=INFO,stdout,logfile log4j.rootLogger=info,stdout log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target=System.out log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %c{1}:%L %5p - %m%n log4j.logger.com.netqin=INFO log4j.logger.org.springframework=INFO log4j.appender.logfile=org.apache.log4j.DailyRollingFileAppender log4j.appender.logfile.DatePattern='.'yyyy-MM-dd log4j.appender.logfile.File=F\:/S3S3M3.log log4j.appender.logfile.layout=org.apache.log4j.PatternLayout log4j.appender.logfile.layout.ConversionPattern=%d %p [%X{userName}][%X{userLocale}][%c] - <%m>%n
f:spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd"> <!-- 自動掃描controller包下的全部類,使其認爲spring mvc的控制器 --> <context:component-scan base-package="zhu.web"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" /> </context:component-scan> <!-- 日期轉換 必須放在<mvc:annotation-driven />前面 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"></bean> <!-- 註解方式 --> <mvc:annotation-driven> </mvc:annotation-driven> <!-- 啓動Spring MVC的註解功能,完成請求和註解POJO的映射 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> <!--mvc配置視圖解析 --> <!-- 對模型視圖名稱的解析,即在模型視圖名稱添加先後綴 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" > <property name="prefix" value="/WEB-INF/"></property> <property name="suffix" value=".jsp"></property> </bean> <!--跳轉的時候只用寫jsp名字,不用帶後綴,由於默認的後綴「.jsp」,路徑爲「/WEB-INF/jsp」 --> </beans>
g:spring-mybatis.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd"> <!-- ========================================數據庫方言========================================= --> <!-- properties配置文件 --> <bean id="dbProperties" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <!-- 是否忽略不可解析的 --> <property name="ignoreUnresolvablePlaceholders" value="true" /> <property name="locations"> <list> <value>classpath:jdbc.properties</value> </list> </property> </bean> <!-- ========================================數據源配置========================================= --> <!-- 配置數據源,使用的是alibaba的Druid(德魯伊)數據源 --> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <property name="url" value="${url}" /> <property name="username" value="${username}" /> <property name="password" value="${password}" /> <!-- 初始化鏈接大小 --> <property name="initialSize" value="0" /> <!-- 鏈接池最大使用鏈接數量 --> <property name="maxActive" value="20" /> <!-- 鏈接池最大空閒 --> <property name="maxIdle" value="20" /> <!-- 鏈接池最小空閒 --> <property name="minIdle" value="0" /> <!-- 獲取鏈接最大等待時間 --> <property name="maxWait" value="60000" /> <property name="validationQuery" value="${validationQuery}" /> <property name="testOnBorrow" value="false" /> <property name="testOnReturn" value="false" /> <property name="testWhileIdle" value="true" /> <!-- 配置間隔多久才進行一次檢測,檢測須要關閉的空閒鏈接,單位是毫秒 --> <property name="timeBetweenEvictionRunsMillis" value="60000" /> <!-- 配置一個鏈接在池中最小生存的時間,單位是毫秒 --> <property name="minEvictableIdleTimeMillis" value="25200000" /> <!-- 打開removeAbandoned功能 --> <property name="removeAbandoned" value="true" /> <!-- 1800秒,也就是30分鐘 --> <property name="removeAbandonedTimeout" value="1800" /> <!-- 關閉abanded鏈接時輸出錯誤日誌 --> <property name="logAbandoned" value="true" /> <!-- 監控數據庫 --> <!-- <property name="filters" value="stat" /> --> <property name="filters" value="mergeStat" /> </bean> <!-- ========================================MyBatis的配置項============================== --> <!-- 配置sqlSessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 實例化sqlSessionFactory時須要使用上述配置好的數據源以及SQL映射文件 --> <property name="dataSource" ref="dataSource" /> <!-- <property name="configLocation" value="classpath:mybatis.cofig.xml" /> --> <!-- 自動掃描Mybatis的Mapper.xml文件 --> <property name="mapperLocations" value="classpath:zhu/mapper/*.xml" /> </bean> <!-- 配置掃描器 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!-- 掃描zhu.dao這個包以及它的子包下的全部映射接口類 --> <property name="basePackage" value="zhu.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> </bean> <!-- 配置事務管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <!-- 攔截器方式配置事物 --> <tx:advice id="transactionAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="add*" propagation="REQUIRED" /> <tx:method name="append*" propagation="REQUIRED" /> <tx:method name="insert*" propagation="REQUIRED" /> <tx:method name="save*" propagation="REQUIRED" /> <tx:method name="update*" propagation="REQUIRED" /> <tx:method name="modify*" propagation="REQUIRED" /> <tx:method name="edit*" propagation="REQUIRED" /> <tx:method name="delete*" propagation="REQUIRED" /> <tx:method name="remove*" propagation="REQUIRED" /> <tx:method name="repair" propagation="REQUIRED" /> <tx:method name="delAndRepair" propagation="REQUIRED" /> <tx:method name="get*" propagation="SUPPORTS" /> <tx:method name="find*" propagation="SUPPORTS" /> <tx:method name="load*" propagation="SUPPORTS" /> <tx:method name="search*" propagation="SUPPORTS" /> <tx:method name="datagrid*" propagation="SUPPORTS" /> <tx:method name="*" propagation="SUPPORTS" /> </tx:attributes> </tx:advice> <aop:config> <!-- 配置全部的Advice,使用正則表達式,配置全部類,全部返回值的方法 --> <aop:pointcut id="transactionPointcut" expression="execution(* zhu.service..*Impl.*(..))" /> <aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" /> </aop:config> <!-- 配置druid監控spring jdbc --> <bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor"></bean> <bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype"> <property name="patterns"> <list> <value>zhu.service.*</value> </list> </property> </bean> <aop:config> <aop:advisor advice-ref="druid-stat-interceptor" pointcut-ref="druid-stat-pointcut" /> </aop:config> </beans>
數據庫的表
建立表:
USE jdbc01;
CREATE TABLE tbdept(
did INT PRIMARY KEY AUTO_INCREMENT,
dname VARCHAR(40),
)ENGINE=INNODB DEFAULT CHARSET=utf8;
新增數據
INSERT INTO tbdept ( dname ) VALUES ( 'A部門' );
INSERT INTO tbdept ( dname ) VALUES ( 'B部門' );
INSERT INTO tbdept ( dname ) VALUES ( 'C部門' );
2):代碼
package zhu.po; public class Tbdept { private Integer did; private String dname; public Integer getDid() { return did; } public void setDid(Integer did) { this.did = did; } public String getDname() { return dname; } public void setDname(String dname) { this.dname = dname; } }
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" > <!--namespace命令空間,做用就是對sql進行分類化管理,理解sql隔離 注意:使用mapper代理方法開發,namepace有特殊重要的做用 --> <mapper namespace="zhu.dao.TbempMapper" > <resultMap id="BaseResultMap" type="zhu.po.Tbdept" > <id column="did" property="did" jdbcType="INTEGER" /> <result column="dname" property="dname" jdbcType="VARCHAR" /> </resultMap> <sql id="Base_Column_List" > did, dname </sql> <select id="query_tbDept" resultType="zhu.po.Tbdept" > SELECT did,dname FROM tbdept </select> </mapper>
package zhu.dao; import java.util.List; import org.springframework.stereotype.Repository; import zhu.po.Tbdept; @Repository(value = "tbemdao") public interface TbempMapper { List<Tbdept> query_tbDept (); }
package zhu.service; import java.util.List; import zhu.po.Tbdept; public interface I_tbenService { List<Tbdept> query_tbDept (); }
package zhu.service.impl; import java.util.List; import javax.annotation.Resource; import org.springframework.stereotype.Service; import zhu.dao.TbempMapper; import zhu.po.Tbdept; import zhu.service.I_tbenService; @Service public class TbempService_Impl implements I_tbenService { @Resource(name="tbemdao") private TbempMapper my_tbemp; @Override public List<Tbdept> query_tbDept() { // TODO Auto-generated method stub return my_tbemp.query_tbDept(); } }
package zhu.web; import java.io.IOException; import java.io.PrintWriter; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServletResponse; import net.sf.json.JSONObject; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import zhu.po.Tbdept; import zhu.service.I_tbenService; @Controller @RequestMapping("/Binding_Cbo") public class Binding_Cbo { @Autowired private I_tbenService my_TbenService; @RequestMapping(value="/android_cbo.json",produces="application/json") public void android_cbo(HttpServletResponse response)throws ServletException, IOException{ JSONObject json = new JSONObject(); PrintWriter writer = response.getWriter(); List<Tbdept> cbo_bm= my_TbenService.query_tbDept(); json.put("cbo_bm", cbo_bm); writer.write(json.toString()); writer.close(); } }
而後檢查一下 是否能成功 運行
三:Android studio
// Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { repositories { jcenter() // add plugin } dependencies { classpath 'com.android.tools.build:gradle:2.3.3' classpath 'org.greenrobot:greendao-gradle-plugin:3.2.2' // add plugin // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } } allprojects { repositories { jcenter() } } task clean(type: Delete) { delete rootProject.buildDir }
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// 這個很是重要,會生成Dao的類
greendao { //add plugin
schemaVersion 2
//生成greedao的對象類的路徑
設置DaoMaster,DaoSession,Dao包的路徑,我不太喜歡它原來的路徑,每次找都很麻煩,因此把它放在一個本身方便看的路徑下來,你也能夠不要下面這兩句!
daoPackage 'zhu.com.sprnner_cbo.greendao'
targetGenDir 'src/main/java'//保存到java代碼路徑 ==》這句你能夠不要
}
有這倆句,那麼DaoMaster,DaoSession,Dao那麼路徑挺好找的
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
apply plugin: 'com.android.application' apply plugin: 'org.greenrobot.greendao'//add plugin android { compileSdkVersion 26 buildToolsVersion "26.0.1" defaultConfig { applicationId "zhu.com.sprnner_cbo" minSdkVersion 19 targetSdkVersion 26 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } // 這個很是重要,會生成Dao的類 greendao { //add plugin schemaVersion 2 //生成greedao的對象類的路徑 ==》我不太喜歡它原來的路徑,因此把它放在一個本身方便看的路徑下來,因此這句你能夠不要! daoPackage 'zhu.com.sprnner_cbo.greendao' targetGenDir 'src/main/java'//保存到java代碼路徑 ==》這句你能夠不要 } dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { exclude group: 'com.android.support', module: 'support-annotations' }) compile 'com.android.support:appcompat-v7:26.+' compile 'com.android.support.constraint:constraint-layout:1.0.2' compile 'com.loopj.android:android-async-http:1.4.9'// add library==》這個是添加 網絡請求的插件 compile 'org.greenrobot:greendao:3.2.2' // add library ==>這個是 添加 greedao插件 testCompile 'junit:junit:4.12' }
b):由於須要網絡的請求 因此 要必須 要在AndroidManifest.xml加一句代碼,不加就會出現下面這種錯誤的狀況
12-26 02:45:25.969 5267-5334/zhu.com.sprnner_cbo W/System.err: java.net.SocketException: Permission denied 12-26 02:45:25.970 5267-5334/zhu.com.sprnner_cbo W/System.err: at java.net.Socket.createImpl(Socket.java:473) 12-26 02:45:25.970 5267-5334/zhu.com.sprnner_cbo W/System.err: at java.net.Socket.getImpl(Socket.java:536) 12-26 02:45:25.971 5267-5334/zhu.com.sprnner_cbo W/System.err: at java.net.Socket.setSoTimeout(Socket.java:1127) 12-26 02:45:25.971 5267-5334/zhu.com.sprnner_cbo W/System.err: at cz.msebera.android.httpclient.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:116) 12-26 02:45:25.971 5267-5334/zhu.com.sprnner_cbo W/System.err: at cz.msebera.android.httpclient.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:157) 12-26 02:45:25.971 5267-5334/zhu.com.sprnner_cbo W/System.err: at cz.msebera.android.httpclient.conn.scheme.SchemeSocketFactoryAdaptor.connectSocket(SchemeSocketFactoryAdaptor.java:65) 12-26 02:45:25.972 5267-5334/zhu.com.sprnner_cbo W/System.err: at cz.msebera.android.httpclient.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:177) 12-26 02:45:25.972 5267-5334/zhu.com.sprnner_cbo W/System.err: at cz.msebera.android.httpclient.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:145) 12-26 02:45:25.972 5267-5334/zhu.com.sprnner_cbo W/System.err: at cz.msebera.android.httpclient.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:131) 12-26 02:45:25.972 5267-5334/zhu.com.sprnner_cbo W/System.err: at cz.msebera.android.httpclient.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:611) 12-26 02:45:25.973 5267-5334/zhu.com.sprnner_cbo W/System.err: at cz.msebera.android.httpclient.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:446) 12-26 02:45:25.973 5267-5334/zhu.com.sprnner_cbo W/System.err: at cz.msebera.android.httpclient.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:860) 12-26 02:45:25.973 5267-5334/zhu.com.sprnner_cbo W/System.err: at cz.msebera.android.httpclient.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) 12-26 02:45:25.973 5267-5334/zhu.com.sprnner_cbo W/System.err: at com.loopj.android.http.AsyncHttpRequest.makeRequest(AsyncHttpRequest.java:146) 12-26 02:45:25.974 5267-5334/zhu.com.sprnner_cbo W/System.err: at com.loopj.android.http.AsyncHttpRequest.makeRequestWithRetries(AsyncHttpRequest.java:177) 12-26 02:45:25.974 5267-5334/zhu.com.sprnner_cbo W/System.err: at com.loopj.android.http.AsyncHttpRequest.run(AsyncHttpRequest.java:106) 12-26 02:45:25.974 5267-5334/zhu.com.sprnner_cbo W/System.err: at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:428) 12-26 02:45:25.974 5267-5334/zhu.com.sprnner_cbo W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237) 12-26 02:45:25.975 5267-5334/zhu.com.sprnner_cbo W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133) 12-26 02:45:25.975 5267-5334/zhu.com.sprnner_cbo W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607) 12-26 02:45:25.975 5267-5334/zhu.com.sprnner_cbo W/System.err: at java.lang.Thread.run(Thread.java:761)
好了配置弄好剩下的就 很好解決了
c):代碼
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="zhu.com.sprnner_cbo.MainActivity"> <Spinner android:id="@+id/kj_spinner_tbmep" android:layout_width="240dp" android:layout_height="30dp" android:layout_margin="5dp" android:background="@drawable/etitext_frame_radiuo" android:spinnerMode="dialog" android:entries="@array/cbo_tbmep" /> </RelativeLayout>
d):設置實體類:
實體類 要根據返回的json中 相對於的key 一一對應
注意: 主鍵:id必需要設置Long的類型 ,切記 必需要加入 @Entity, 和@Id
設置好變量後 ,還有一個操做 設置 生成DaoMaster,DaoSession,Dao類的操做,這它就會自動補全咱們實體類剩下的get和set的方法了
================生成的========》
最後在實體類中再加 一個方法 獲得 從 服務器專遞的json的數據 // 將json ==>轉化爲 Bean的對象(即Tb_Cbo_CLDL的對象) public static Tbmep json_To_Bean(JSONObject object){ try { return new Tbmep(object.getLong("did"), object.getString("dname") ); }catch (Exception e){ } return null; }
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package zhu.com.sprnner_cbo; import org.greenrobot.greendao.annotation.Entity; import org.greenrobot.greendao.annotation.Id; import org.greenrobot.greendao.annotation.Generated; import org.json.JSONObject; /** * Created by XiaoZhu on 2017/12/14. */ @Entity public class Tbmep { @Id private Long did; private String dname; @Generated(hash = 1103728403) public Tbmep(Long did, String dname) { this.did = did; this.dname = dname; } @Generated(hash = 1857599075) public Tbmep() { } public Long getDid() { return this.did; } public void setDid(Long did) { this.did = did; } public String getDname() { return this.dname; } public void setDname(String dname) { this.dname = dname; } // 將json ==>轉化爲 Bean的對象(即Tb_Cbo_CLDL的對象) public static Tbmep json_To_Bean(JSONObject object){ try { return new Tbmep(object.getLong("did"), object.getString("dname") ); }catch (Exception e){ } return null; } }
MainActivity
package zhu.com.sprnner_cbo; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Spinner; import android.widget.Toast; import com.loopj.android.http.AsyncHttpClient; import com.loopj.android.http.AsyncHttpResponseHandler; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import java.io.InputStream; import java.util.ArrayList; import java.util.List; import cz.msebera.android.httpclient.Header; import cz.msebera.android.httpclient.HttpResponse; import cz.msebera.android.httpclient.NameValuePair; import cz.msebera.android.httpclient.client.entity.UrlEncodedFormEntity; import cz.msebera.android.httpclient.client.methods.HttpPost; import cz.msebera.android.httpclient.impl.client.DefaultHttpClient; import cz.msebera.android.httpclient.message.BasicNameValuePair; public class MainActivity extends AppCompatActivity implements AdapterView.OnItemSelectedListener { private Spinner btn_spinner_tbmep; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); btn_spinner_tbmep = (Spinner) findViewById(R.id.kj_spinner_tbmep); btn_spinner_tbmep.setOnItemSelectedListener(MainActivity. this);//成品尺寸 } /** * 若是使用 類 實現==>這個的 implements AdapterView.OnItemSelectedListener * ,那麼就必需要複寫下面這個方法onItemSelected() * onNothingSelected() * @param adapterView * @param view * @param i * @param l */ @Override //成功幹嗎 public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) { switch (adapterView.getId()){ case R.id.kj_spinner_tbmep: //kj_spinner_tbmep ==>這個是 控件的 id名稱 cbo_tbmep(); break; } } @Override //不成功幹嗎 public void onNothingSelected(AdapterView<?> adapterView) { } //==>這是系統自帶的 下拉框 private List<String> list_Cbo_str=null;// 接受string的數據 List<Tbmep> list_cboBinding=null;//接收 TbCboCLDL對象的數據 ArrayAdapter<String> arrayAdapter=null; int tbmepId=0;//接收ID //訪問後臺的 封面紙張的 連接 public void cbo_tbmep(){ AsyncHttpClient client =new AsyncHttpClient(); //第一個參數是訪問 後臺的路徑,第二是:參數根據 id獲取 string 查詢數據 ,第三個:回調函數 client.get("http://192.168.191.2:8080/2017_1214_cbo/Binding_Cbo/android_cbo.json", null, new AsyncHttpResponseHandler() { @Override public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) { if (statusCode==200){ try { JSONObject object = new JSONObject(new String(responseBody));//獲取json數據 JSONArray jsonArray = object.getJSONArray("cbo_bm");//獲取數據集名稱爲obj的數據 Log.d("jsonArray數據輸出:", String.valueOf(jsonArray)); list_cboBinding = new ArrayList<>(); for(int i=0;i<jsonArray.length();i++){ //把 json 轉換爲 ==》bean的對象形式 Tbmep cbo=Tbmep.json_To_Bean(jsonArray.getJSONObject(i)); if (cbo!=null){ list_cboBinding.add(cbo);//把對象放入 list的數組中 } } //判斷是否有數據 if (jsonArray.length() > 0) { list_Cbo_str = new ArrayList<>(); for (int i = 0; i < list_cboBinding.size(); i++) { Tbmep section = list_cboBinding.get(i); list_Cbo_str.add(section.getDname()); } //1.爲下拉列表定義一個數組適配器,這個數組適配器就用到裏前面定義的list。裝的都是list所添加的內容 android.R.layout.simple_spinner_item==》這是系統原本就有的哦 arrayAdapter = new ArrayAdapter<>(MainActivity.this, android.R.layout.simple_spinner_item, list_Cbo_str); //2.爲適配器設置下拉菜單樣式。android.R.layout.simple_list_item_single_choice==》Android系統自帶樣式 arrayAdapter.setDropDownViewResource(android.R.layout.simple_list_item_single_choice); //3.以上聲明完畢後,創建適配器,有關於sipnner這個控件的創建。用到kj_user_fm_spinner_papers2 btn_spinner_tbmep.setAdapter(arrayAdapter); //4.爲下拉列表設置各類點擊事件,以響應菜單中的文本item被選中了,用setOnItemSelectedListener btn_spinner_tbmep.setOnItemSelectedListener(new Spinner.OnItemSelectedListener() {//選擇item的選擇點擊監聽事件 public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { tbmepId=0; tbmepId =list_cboBinding.get((int) id).getDid().intValue();//獲取id arrayAdapter.getItem(position);//==》獲取選擇的項目名稱 } public void onNothingSelected(AdapterView<?> parent ) { } }); } } catch (JSONException e) { Toast.makeText(MainActivity.this, "下拉框加載失敗!", Toast.LENGTH_SHORT).show(); } }else if(statusCode==400){ Toast.makeText(MainActivity.this, "若返回值400,則是返回網絡異常!", Toast.LENGTH_SHORT).show(); } } @Override public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) { Toast.makeText(MainActivity.this, "請求網絡失敗!", Toast.LENGTH_SHORT).show(); } }) ; } }
好了,上面的就是我 綁定Android下拉框全部的代碼了
運行時必需要先運行後臺服務器,要不根本跑不起來,還有若是使用真機必需要使用同一個wifi
運行效果:
由於每次想下載的時候CSDN都要資源分而我恰好沒有,因此我把我此次的源碼放到了CSDN上。。。。上面的代碼是已經齊的了,若是實在不想下載,那你能夠去我以前的http://www.cnblogs.com/zhu520/p/7883273.html 下載 ssm ,去 裏面找 jar 便可