技术标签: spring Maven java struts mybatis struts2.0 框架
1:maven依赖
<!-- 注解@Resource -->
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>jsr250-api</artifactId>
<version>1.0</version>
</dependency>
<!-- json start -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.1</version>
</dependency>
<!-- json end -->
<!-- servlet start -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<!-- servlet end -->
<!-- logback start -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.21</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.1.7</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.7</version>
</dependency>
<!-- logback end -->
<!-- struts2 start -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-convention-plugin</artifactId>
<version>2.3.14</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>2.3.14</version>
</dependency>
<dependency>
<groupId>org.apache.struts.xwork</groupId>
<artifactId>xwork-core</artifactId>
<version>2.3.14</version>
</dependency>
<!-- struts2 end -->
<!-- spring start-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
<version>2.3.14</version>
</dependency>
<!-- spring end -->
<!-- oracle start -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc14</artifactId>
<version>10.2.0.1.0</version>
</dependency>
<!-- oracle end -->
<!-- mybatis start -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.0</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>commons-pool</groupId>
<artifactId>commons-pool</artifactId>
<version>1.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<!-- mybatis end -->
2:model层(存放实体类)
package com.szmsd.wechat.entity;
public class User {
private String userno;
private String username;
public String getUserno() {
return userno;
}
public void setUserno(String userno) {
this.userno = userno;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
@Override
public String toString() {
return "User [userno=" + userno + ", username=" + username + "]";
}
}
3:dao层(数据库操作)
package com.szmsd.wechat.dao;
import java.util.List;
import java.util.Map;
import com.szmsd.wechat.entity.User;
public interface UserDao {
public List<User> findUserList(Map<String, Object> params);
}
dao实现类
package com.szmsd.wechat.dao.impl;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.stereotype.Repository;
import com.szmsd.wechat.dao.UserDao;
import com.szmsd.wechat.entity.User;
@Repository("UserDao")
public class UserDaoImpl implements UserDao {
private @Resource SqlSessionTemplate a;
public List<User> findUserList(Map<String, Object> params) {
return a.selectList(getClassPath()+"findUserList", params);
}
public String getClassPath(){
return "com.szmsd.wechat.dao.UserDao.";
}
}
4:service层(业务逻辑)
package com.szmsd.wechat.service;
import java.util.List;
import java.util.Map;
import com.szmsd.wechat.entity.User;
public interface UserService {
public List<User> findUserList(Map<String, Object> params);
}
service实现类
package com.szmsd.wechat.service.impl;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.szmsd.wechat.dao.UserDao;
import com.szmsd.wechat.entity.User;
import com.szmsd.wechat.service.UserService;
@Service("UserService")
public class UserServiceImpl implements UserService {
private @Resource UserDao userDao;
public List<User> findUserList(Map<String, Object> params) {
return this.userDao.findUserList(params);
}
}
5:action处理类
package com.szmsd.wechat.action;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.Resource;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Scope;
import com.google.gson.Gson;
import com.szmsd.wechat.base.BaseAction;
import com.szmsd.wechat.entity.User;
import com.szmsd.wechat.service.UserService;
@Namespace("/user")
@Scope("prototype")
@Action(value = "userAction")
public class UserAction extends BaseAction {
private static final long serialVersionUID = 1L;
private static Logger logger = LoggerFactory.getLogger(UserAction.class);
private @Resource UserService userService;
private Gson gson = new Gson();
public void findUserList(){
try {
Map<String, Object> params = new HashMap<String, Object>();
List<User> list = this.userService.findUserList(params);
if(list != null && list.size() > 0) {
resJson.setSuccess(true);
resJson.setData(list);
resJson.setDesc("请求成功");
} else {
resJson.setSuccess(false);
resJson.setDesc("请求失败");
}
} catch (Exception e) {
e.printStackTrace();
}
String result = gson.toJson(resJson);
logger.info("[查询员工信息]请求结果:"+result);
out().print(result);
}
}
用到的工具类BaseAction、ResJson、ResponseJson
package com.szmsd.wechat.base;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.commons.lang3.StringUtils;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class BaseAction extends ActionSupport {
private static final long serialVersionUID = 1L;
/***************外部工具类*************************/
protected ResponseJson resJson = new ResponseJson();
protected ResJson rjson = new ResJson();
/**
* 两个参数 是否为空,有一个为空都返回true
*
* @return
*/
protected boolean isEmpty(String... str) {
for (String s : str) {
if (StringUtils.isEmpty(s)) {
return true;
}
}
return false;
}
public static String format(Date date, String format) {
String result = "";
try {
if (date != null) {
DateFormat df = new SimpleDateFormat(format);
result = df.format(date);
}
} catch (Exception e) {
}
return result;
}
/**
* 获取request的ip地址
*
* @param request
* @return
*/
public String getIpAddr() {
String ip = req().getHeader("x-forwarded-for");
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = req().getHeader("Proxy-Client-IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = req().getHeader("WL-Proxy-Client-IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = req().getRemoteAddr();
}
return ip;
}
/**
* 获取HttpServletRequest对象
*
* @return
*/
protected HttpServletRequest req() {
return ServletActionContext.getRequest();
}
/**
* 获取HttpServletResponse对象
*
* @return
*/
protected HttpServletResponse res() {
HttpServletResponse response = ServletActionContext.getResponse();
// 解决乱码问题
response.setCharacterEncoding("utf-8");
response.setContentType("text/html;charset=utf-8");
return response;
}
/**
* 获取HttpSession对象
*
* @return
*/
protected HttpSession session() {
HttpSession session = req().getSession();
session.setMaxInactiveInterval(10 * 60 * 60);// 有效会话时间10小时
return session;
}
/**
* 获取ServletContext对象
*
* @return
*/
protected ServletContext application() {
return session().getServletContext();
}
/**
* 获取PrintWriter对象
*
* @return
*/
protected PrintWriter out() {
try {
return res().getWriter();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
/**
* 获取参数
*
* @param paramName
* @return
*/
protected String getParam(String paramName) {
return req().getParameter(paramName) != null ? req().getParameter(paramName) : "";
}
/**
* 随机生成6位数验证码
* @return
*/
public int accessCode(){
return (int) ((Math.random() * 9 + 1) * 100000);
}
}
package com.szmsd.wechat.base;
public class ResJson {
private String success= "false"; //响应状态(成功/失败)
private String desc; //说明
private Object data; //内容
private String code; //响应编码
public String getSuccess() {
return success;
}
public void setSuccess(String success) {
this.success = success;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
public Object getData() {
return data;
}
public void setData(Object data) {
this.data = data;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
@Override
public String toString() {
return "ResJson [success=" + success + ", desc=" + desc + ", data=" + data + ", code=" + code + "]";
}
}
package com.szmsd.wechat.base;
public class ResponseJson {
private boolean success= false; //成功、失败
private String desc; //说明
private Object data; //内容
public boolean isSuccess() {
return success;
}
public void setSuccess(boolean success) {
this.success = success;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
public Object getData() {
return data;
}
public void setData(Object data) {
this.data = data;
}
@Override
public String toString() {
return "ResponseJson [success=" + success + ", desc=" + desc
+ ", data=" + data + "]";
}
}
6:struts2配置文件 (struts.xml)
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<!-- 指定由spring负责action对象的创建 -->
<constant name="struts.objectFactory" value="spring" />
<!-- 所有匹配*.action的请求都由struts2处理 -->
<constant name="struts.action.extension" value="action" />
<!-- 是否启用开发模式 -->
<constant name="struts.devMode" value="false" />
<!-- struts配置文件改动后,是否重新加载 -->
<constant name="struts.configuration.xml.reload" value="false" />
<!-- 设置浏览器是否缓存静态内容 -->
<constant name="struts.serve.static.browserCache" value="true" />
<!-- 请求参数的编码方式 -->
<constant name="struts.i18n.encoding" value="utf-8" />
<!-- 每次HTTP请求系统都重新加载资源文件,有助于开发 -->
<constant name="struts.i18n.reload" value="false" />
<!-- 文件上传最大值 -->
<constant name="struts.multipart.maxSize" value="104857600" />
<!-- 让struts2支持动态方法调用 -->
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
<!-- Action名称中是否可使用斜线 -->
<constant name="struts.enable.SlashesInActionNames" value="false" />
<!-- 允许标签中使用表达式语法 -->
<constant name="struts.tag.altSyntax" value="true" />
<!-- 对于WebLogic,Orion,OC4J此属性应该设置成true -->
<constant name="struts.dispatcher.parametersWorkaround" value="false" />
<!-- 设置Convention插件是否从jar包中搜索Action类 [可选] 默认值为true -->
<constant name="struts.convention.action.disableJarScanning"
value="true" />
<!-- 设置Convention插件文件协议类型 -->
<constant name="struts.convention.action.fileProtocols" value="jar" />
<!-- 设置Convention插件需要搜索的jar包 -->
<constant name="struts.convention.action.includeJars" value=".*?/msd-*.*?jar(!/)?" />
<!-- 该常量指定包作为根包来搜索Action类。 Convention插件除了扫描默认的action,actions,struts,struts2
,还会扫描该常量指定的一个或多个包, Convention会试图从指定包中发现Action类。 -->
<constant name="struts.convention.action.packages" value="com.szmsd.web" />
<!-- 默认包路径包含action,actions,struts,struts2的所有包都会被struts作为含有Action类的路径来搜索 -->
<constant name="struts.convention.package.locators" value="web,action" />
<constant name="struts.convention.result.path" value="/template" />
<package name="default" extends="struts-default">
<global-results>
<result name="strutsException">/error/strutsException.jsp</result>
</global-results>
<global-exception-mappings>
<exception-mapping result="strutsException"
exception="java.lang.Exception"></exception-mapping>
</global-exception-mappings>
</package>
</struts>
7:spring配置文件(applicationContext.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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-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/tx
http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd"
default-autowire="byName">
<!-- 开启spring注解 -->
<context:annotation-config />
<context:component-scan base-package="com.szmsd" />
<!-- 加载数据库连接文件 -->
<context:property-placeholder location="classpath:dbSource.properties" />
<!-- 数据源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${driver}"></property>
<property name="url" value="${url}"></property>
<property name="username" value="${user}"></property>
<property name="password" value="${password}"></property>
<property name="maxActive" value="40" />
<property name="initialSize" value="5" />
<property name="maxWait" value="60000" />
<property name="maxIdle" value="15" />
<property name="minIdle" value="5" />
<property name="defaultAutoCommit" value="true" />
</bean>
<!-- 配置myBatis SqlSessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:mybatis_config.xml"></property>
<property name="mapperLocations">
<list>
<value>classpath*:mapperconfig/*.xml</value>
</list>
</property>
</bean>
<bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg ref="sqlSessionFactory" />
</bean>
<!-- 配置事务 -->
<bean id="txAttributes" class="org.springframework.transaction.interceptor.NameMatchTransactionAttributeSource">
<property name="properties">
<props>
<prop key="add*">PROPAGATION_REQUIRED,-Exception</prop>
<prop key="save*">PROPAGATION_REQUIRED,-Exception</prop>
<prop key="update*">PROPAGATION_REQUIRED,-Exception</prop>
<prop key="del*">PROPAGATION_REQUIRED,-Exception</prop>
<prop key="remove*">PROPAGATION_REQUIRED,-Exception</prop>
<prop key="read*">PROPAGATION_REQUIRED,readOnly</prop>
<prop key="find*">PROPAGATION_REQUIRED,readOnly</prop>
<prop key="load*">PROPAGATION_REQUIRED,readOnly</prop>
<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>
<bean id="autoProxyCreatorGdasn" class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator" depends-on="interceptor">
<property name="interceptorNames">
<list>
<value>interceptor</value>
</list>
</property>
<property name="beanNames">
<list>
<value>*Service*</value>
</list>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" depends-on="dataSource">
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="interceptor" class="org.springframework.transaction.interceptor.TransactionInterceptor" depends-on="transactionManager,txAttributes">
<property name="transactionManager">
<ref bean="transactionManager" />
</property>
<property name="transactionAttributeSource">
<ref bean="txAttributes" />
</property>
</bean>
</beans>
8:mybatis配置文件和mapper文件
myBatisConfig.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD SQL Map Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<typeAliases>
<package name="com.szmsd.wechat.entity"/>
</typeAliases>
</configuration>
user.xml
<?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">
<mapper namespace="com.szmsd.wechat.dao.UserDao">
<!-- 查询所有用户信息 -->
<select id="findUserList" resultType="User" parameterType="map">
<![CDATA[
select t.员工编号 as userno, t.姓名 as username
from tab_公司员工表 t
]]>
</select>
</mapper>
9:web.xml配置
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<!-- 初始化spring配置 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springconfig/applicationContext*.xml</param-value>
</context-param>
<!-- struts2 的拦截器 -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- spring 监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
10:运行结果
11:框架结构图
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文章浏览阅读660次。首先打印一次recv调用失败的errno值和各个宏的值.由上可知,EAGIN和EWOULDBLOCK的值都是11,其实EAGIN是在setsockopt设置SO_RCVTIMEO或SO_SNDTIMEO后,recv或者send系列函数超时等待返回-1,此时的errno值。EWOULDBLOCK则是大家熟悉的异步调用产生的errno。recv return -1,errn..._recv -1 errno 4 so_rcvtimeo
文章浏览阅读46次。2019独角兽企业重金招聘Python工程师标准>>> ..._data=l'a','b','c','d','e','f','g','h']for i in data[1:6:2]:print(i)
文章浏览阅读1k次。listview,girdview这些控件在我们android开发经常用的到,但是,数据显示不全的问题也是我们经常碰到的,下面只要在代码中加入几行代码即可以下方法仅供参考,转自网络listview控件显示数据private void listFitHeight(ListView listView){ RepairDetailInfosAdpter listAdapter=(RepairDet_gridview 数据少了
文章浏览阅读6.6k次。使用开源软件Prometheus监控企业内部资源1. 写在前面 在电厂行政管理大区内,因为业务体量小,业务变化相对少,之前公司采用的监控技术栈较为落后,只有简单的北塔网络监控,基本没有任何的监控平台。 接触Docker和kubernetes时间久了,开源的监控方案所接触。网上也有不少Zabbix、Nagios、Open-Falcon、Prometheus、Influxdb的对比这里就不一一列举了。最终平海电厂选择Prometheus+Grafana+explorer技术栈作为企_8919 hostname关联
文章浏览阅读477次。今天配置hbase的时候发现有几台机器的regionserver启不来。报错例如以下: at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(N..._启动hbase没有hquorumpeer和hregionserver
文章浏览阅读1.5k次。//// ViewController.m// 父控件与子控件#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad { [super viewDidLoad]; /** *_ug删除父视图子视图也没了,怎么取消关联
文章浏览阅读1.4w次,点赞2次,收藏6次。抛异常:09-15 02:55:15.835 10255-10255/com.example.fanenqian.jndk E/AndroidRuntime: FATAL EXCEPTION: main Process: com.examp_ndk java.lang.unsatisfiedlinkerror: no implementation found for