ssm專案——CRM客戶管理系統開發準備
阿新 • • 發佈：2018-12-19
這個專案是學習完spring，springmvc，mybatis後為了加強知識所做的ssm專案，為CRM客戶管理系統
一、CRM專案外觀
二、資料庫準備
資料庫sql檔案可以從下方連結中下載。
三、工程搭建
工程使用spring，springmvc，mybatis，jsp
3.1建立JavaWeb專案，我取名為SSM_CRM
3.2加入jar包
3.3建立配置檔案
3.3.1 SqlMapConfig.xml
只需要設定別名即可
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <!-- 別名 --> <typeAliases> <package name="cn.zhao.crm.pojo"/> </typeAliases> </configuration>
3.3.2 applicationContext-dao.xml
設定properties配置檔案，配置資料庫相關資訊，配置資料來源，配置SqlSessionFactory工廠，配置Mapper掃描器
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"> <!-- 配置 讀取properties檔案 jdbc.properties --> <context:property-placeholder location="classpath:jdbc.properties" /> <!-- 配置 資料來源 --> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"> <property name="driverClassName" value="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> </bean> <!-- 配置SqlSessionFactory --> <bean class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 設定MyBatis核心配置檔案 --> <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml" /> <!-- 設定資料來源 --> <property name="dataSource" ref="dataSource" /> </bean> <!-- 配置Mapper掃描 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!-- 設定Mapper掃描包 --> <property name="basePackage" value="cn.zhao.crm.mapper" /> </bean> </beans>
3.3.3 jdbc.properties
配置資料庫資訊
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/crm?characterEncoding=utf-8
jdbc.username=root
jdbc.password=root
3.3.4 applicationContext-sevice.xml
掃描cn.zhao.crm.service包下的類
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd"> <!-- 配置Service掃描 --> <context:component-scan base-package="cn.zhao.crm.service" /> </beans>
3.3.5 springmvc.xml
配置靜態資源，解析器，介面卡，註解驅動，controller類掃描
<?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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 配置Controller掃描 -->
<context:component-scan base-package="cn.zhao.crm.controller" />
<!-- 配置註解驅動 -->
<mvc:annotation-driven />
<!-- 放行靜態資源 -->
<mvc:resources location="/css/" mapping="/css/*"/>
<mvc:resources location="/js/" mapping="/js/*"/>
<mvc:resources location="/fonts/" mapping="/fonts/*"/>
<!-- 配置檢視解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 字首 -->
<property name="prefix" value="/WEB-INF/jsp/" />
<!-- 字尾 -->
<property name="suffix" value=".jsp" />
</bean>
</beans>
3.3.6 web.xml
配置前端控制器，防止亂碼的過濾器，監聽器監聽spring
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<!-- 配置spring -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext-*.xml</param-value>
</context-param>
<!-- 配置監聽器載入spring -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置過濾器，解決post的亂碼問題 -->
<filter>
<filter-name>encoding</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>
</filter>
<filter-mapping>
<filter-name>encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置SpringMVC -->
<servlet>
<servlet-name>boot-crm</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/springmvc.xml</param-value>
</init-param>
<!-- 配置springmvc什麼時候啟動，引數必須為整數 -->
<!-- 如果為0或者大於0，則springMVC隨著容器啟動而啟動 -->
<!-- 如果小於0，則在第一次請求進來的時候啟動 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>boot-crm</servlet-name>
<!-- 所有的請求都進入springMVC -->
<url-pattern>/</url-pattern>
</servlet-mapping>
<display-name>SSM_CRM</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>最後根據配置檔案，專案結構如下
utils包是3.5自定義標籤庫中的utils類，後面加入
3.4加入靜態資源
在下方下載連結的壓縮檔案中都有放入
3.5新增自定義標籤庫
這個自定義標籤庫主要是用來為分頁做準備的
在WEB-INF下建立tld資料夾，建立commons.tld檔案
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE taglib
PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
"http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
<tlib-version>2.0</tlib-version>
<jsp-version>1.2</jsp-version>
<short-name>common</short-name>
<uri>http://itcast.cn/common/</uri>
<display-name>Common Tag</display-name>
<description>Common Tag library</description>
<tag>
<name>page</name>
<tag-class>cn.zhao.crm.utils.NavigationTag</tag-class>
<body-content>JSP</body-content>
<description>create navigation for paging</description>
<attribute>
<name>bean</name>
<rtexprvalue>true</rtexprvalue>
</attribute>
<attribute>
<name>number</name>
<rtexprvalue>true</rtexprvalue>
</attribute>
<attribute>
<name>url</name>
<required>true</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
</tag>
</taglib>在cn.zhao.crm包下建立utils包，建立NavigationTag.java和Page.java
NavigationTag.java:
package cn.zhao.crm.utils;
import java.io.IOException;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.TagSupport;
/**
* 顯示格式 上一頁 1 2 3 4 5 下一頁
*/
public class NavigationTag extends TagSupport {
static final long serialVersionUID = 2372405317744358833L;
/**
* request 中用於儲存Page<E> 物件的變數名,預設為“page”
*/
private String bean = "page";
/**
* 分頁跳轉的url地址,此屬性必須
*/
private String url = null;
/**
* 顯示頁碼數量
*/
private int number = 5;
@Override
public int doStartTag() throws JspException {
JspWriter writer = pageContext.getOut();
HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();
Page page = (Page)request.getAttribute(bean);
if (page == null)
return SKIP_BODY;
url = resolveUrl(url, pageContext);
try {
//計算總頁數
int pageCount = page.getTotal() / page.getSize();
if (page.getTotal() % page.getSize() > 0) {
pageCount++;
}
writer.print("<nav><ul class=\"pagination\">");
//顯示“上一頁”按鈕
if (page.getPage() > 1) {
String preUrl = append(url, "page", page.getPage() - 1);
preUrl = append(preUrl, "rows", page.getSize());
writer.print("<li><a href=\"" + preUrl + "\">上一頁</a></li>");
} else {
writer.print("<li class=\"disabled\"><a href=\"#\">上一頁</a></li>");
}
//顯示當前頁碼的前2頁碼和後兩頁碼
//若1 則 1 2 3 4 5, 若2 則 1 2 3 4 5, 若3 則1 2 3 4 5,
//若4 則 2 3 4 5 6 ,若10 則 8 9 10 11 12
int indexPage = (page.getPage() - 2 > 0)? page.getPage() - 2 : 1;
for(int i=1; i <= number && indexPage <= pageCount; indexPage++, i++) {
if(indexPage == page.getPage()) {
writer.print( "<li class=\"active\"><a href=\"#\">"+indexPage+"<span class=\"sr-only\">(current)</span></a></li>");
continue;
}
String pageUrl = append(url, "page", indexPage);
pageUrl = append(pageUrl, "rows", page.getSize());
writer.print("<li><a href=\"" + pageUrl + "\">"+ indexPage +"</a></li>");
}
//顯示“下一頁”按鈕
if (page.getPage() < pageCount) {
String nextUrl = append(url, "page", page.getPage() + 1);
nextUrl = append(nextUrl, "rows", page.getSize());
writer.print("<li><a href=\"" + nextUrl + "\">下一頁</a></li>");
} else {
writer.print("<li class=\"disabled\"><a href=\"#\">下一頁</a></li>");
}
writer.print("</nav>");
} catch (IOException e) {
e.printStackTrace();
}
return SKIP_BODY;
}
private String append(String url, String key, int value) {
return append(url, key, String.valueOf(value));
}
/**
* 為url 參加引數對兒
*
* @param url
* @param key
* @param value
* @return
*/
private String append(String url, String key, String value) {
if (url == null || url.trim().length() == 0) {
return "";
}
if (url.indexOf("?") == -1) {
url = url + "?" + key + "=" + value;
} else {
if(url.endsWith("?")) {
url = url + key + "=" + value;
} else {
url = url + "&" + key + "=" + value;
}
}
return url;
}
/**
* 為url 新增翻頁請求引數
*
* @param url
* @param pageContext
* @return
* @throws javax.servlet.jsp.JspException
*/
private String resolveUrl(String url, javax.servlet.jsp.PageContext pageContext) throws JspException{
//UrlSupport.resolveUrl(url, context, pageContext)
Map params = pageContext.getRequest().getParameterMap();
for (Object key:params.keySet()) {
if ("page".equals(key) || "rows".equals(key)) continue;
Object value = params.get(key);
if (value == null) continue;
if (value.getClass().isArray()) {
url = append(url, key.toString(), ((String[])value)[0]);
} else if (value instanceof String) {
url = append(url, key.toString(), value.toString());
}
}
return url;
}
/**
* @return the bean
*/
public String getBean() {
return bean;
}
/**
* @param bean the bean to set
*/
public void setBean(String bean) {
this.bean = bean;
}
/**
* @return the url
*/
public String getUrl() {
return url;
}
/**
* @param url the url to set
*/
public void setUrl(String url) {
this.url = url;
}
public void setNumber(int number) {
this.number = number;
}
}
Page.java:
package cn.zhao.crm.utils;
import java.util.List;
public class Page<T> {
private int total;
private int page;
private int size;
private List<T> rows;
public int getTotal() {
return total;
}
public void setTotal(int total) {
this.total = total;
}
public int getPage() {
return page;
}
public void setPage(int page) {
this.page = page;
}
public int getSize() {
return size;
}
public void setSize(int size) {
this.size = size;
}
public List<T> getRows() {
return rows;
}
public void setRows(List<T> rows) {
this.rows = rows;
}
}
至此，準備工作就完成了，接下來就是功能的實現了
其功能有：
實現頁面展示
實現查詢條件初始化
實現客戶列表展示
實現修改客戶資訊
實現刪除客戶資訊