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Java编写一个WebService并在Tomcat上发布

發布時間：2025/3/11 java 12 豆豆

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本例采用Myeclipse 2016 CI 6，JDK1.8 。新建一個Web Service Project。

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?選擇如下設置：

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在src目錄下建個包:

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編寫一個接口，其中一個方法返回ArrayList，另一個方法返回JSON：

package Services; import java.sql.SQLException; import java.util.ArrayList;import javax.jws.WebMethod; import javax.jws.WebService;@WebService public interface ResultService<E> {public ArrayList<E> getResultInfo() throws SQLException;@WebMethodpublic String getJsonResultInfo(); }

編寫四個JavaBean實體類用于返回泛型ArrayList<E>類型：?

package Services;public class Employee { private String WORKCODE;private String LASTNAME;private Long SUBCOMPANYID1;private Long DEPARTMENTID1;private String JOBTITLEMARK;private String JOBCALL;private String JOBLEVEL;private long MANAGERID;private String STATUS;private String LOCATIONNAME;private String MOBILE;private String MOBILECALL;private String TELEPHONE;private String STARTDATE;private String LASTMODDATE;//set and get....... } package Services;public class Company {private long ID;private String SUBCOMPANYNAME;//get and set....... }

package Services;public class Dept {private long ID;private String DEPARTMENTNAME;private long SUPDEPID;private long SUBCOMPANYID1;private String DEPARTMENTMARK;private String CANCELED;//get and set...... } package Services;public class DeptLeader {private long BMFZR;private long BM;//get and set.... }

編寫四個子類實現上面這個接口，這里就只舉例一個子類吧，其他三個模式一樣：

package Services;import java.sql.SQLException; import java.util.ArrayList; import javax.jws.WebService; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory;@WebService public class EmployeeServiceImpl implements ResultService<Employee>{private ArrayList<Employee> employees;private Log log = LogFactory.getLog(EmployeeServiceImpl.class.getName());@Overridepublic ArrayList<Employee> getResultInfo() throws SQLException {// TODO Auto-generated method stub PropertiesServiceImpl pro = new PropertiesServiceImpl();//配置文件信息讀取類String conn = pro.getConn();String user = pro.getUser();String password = pro.getPassword();String table = pro.getViewEmployee();JdbcUtils cs = new JdbcUtils(conn, user, password);//JDBC處理類String sqlString = "SELECT * FROM " + table;log.info("SQl:" + sqlString);employees = cs.queryEmployeeResult(sqlString); return employees;}@Overridepublic String getJsonResultInfo() {// TODO Auto-generated method stubString str = "";try {Json<Employee> deJson = new Json<Employee>();//JSON處理類str = deJson.JsonStr(this.getResultInfo());} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}return str;} }

?其中，JSON類的代碼如下圖所示，該類能將ArrayList轉化為Json字符串，如下圖所示，使用JSONArray需要引用幾個jar包，點擊這里下載 json-lib jar包

package Services; import java.util.ArrayList; import net.sf.json.JSONArray;public class Json<E>{public String JsonStr(ArrayList<E> Lists){return JSONArray.fromObject(Lists).toString();} }

編寫ServicePublish類，里面有個main函數，用于本地發布測試。?

package Services; import javax.xml.ws.Endpoint;public class ServicePublish { public static void main(String[] args){PropertiesServiceImpl pro = new PropertiesServiceImpl();String baseAddress = pro.getUrl();String employeeAddress = baseAddress + "Service/Employee";String companyAddress = baseAddress + "Service/Company";String deptAddress = baseAddress + "Service/Dept";String deptLeaderAddress = baseAddress + "Service/DeptLeader";Object implementorEmployee = new EmployeeServiceImpl();Object implementorCompany = new CompanyServiceImpl();Object implementorDept = new DeptServiceImpl();Object implementorDeptLeader = new DeptLeaderServiceImpl();Endpoint.publish(employeeAddress, implementorEmployee); Endpoint.publish(companyAddress, implementorCompany);Endpoint.publish(deptAddress, implementorDept);Endpoint.publish(deptLeaderAddress, implementorDeptLeader);} }

右鍵，選擇"Run As" ——"Java Application"，如下圖所示，進行本地編譯測試：

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能出現XML說明成功了，到此為止本地運行成功：

下面將此WebService部署到TomCat上

首先需要添加一些jar包，總共25個，將這25個jar包添加到Tomcat路徑的lib文件夾下。25個jar包的目錄如下圖所示：點擊這里下載這25個jar包

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在web項目的WEB-INF目錄下，創建sun-jaxws.xml配置文件，內容如下圖所示：

然后還是在web項目的web-info目錄下，創建web.xml配置文件，內容下圖所示：

<?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_3_0.xsd" id="WebApp_ID" version="3.0"><display-name>BPMUserService</display-name><listener><listener-class>com.sun.xml.ws.transport.http.servlet.WSServletContextListener</listener-class> </listener><servlet><servlet-name>EmployeeServiceImpl</servlet-name><servlet-class>com.sun.xml.ws.transport.http.servlet.WSServlet</servlet-class><load-on-startup>1</load-on-startup> </servlet><servlet-mapping><servlet-name>EmployeeServiceImpl</servlet-name><url-pattern>/EmployeeServiceImpl</url-pattern> </servlet-mapping><servlet-mapping><servlet-name>EmployeeServiceImpl</servlet-name><url-pattern>/CompanyServiceImpl</url-pattern> </servlet-mapping><servlet-mapping><servlet-name>EmployeeServiceImpl</servlet-name><url-pattern>/DeptServiceImpl</url-pattern> </servlet-mapping><servlet-mapping><servlet-name>EmployeeServiceImpl</servlet-name><url-pattern>/DeptLeaderServiceImpl</url-pattern> </servlet-mapping></web-app>

右鍵點擊項目，將整個web項目導出為war包，如下圖所示：

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選擇導出路徑，還可以選擇覆蓋原文件：

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將war包放入Tomcat的webapps文件夾下，如下圖所示：