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增加注释

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This commit is contained in:
cyk
2023-06-30 18:52:48 +08:00
parent 6baa2fb9d4
commit 25e507bdf7
10 changed files with 181 additions and 31 deletions
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35
src/com/hellogithub/dao/UserDao.java
View File

@@ -112,31 +112,38 @@ public class UserDao {
JdbcUtils.closeConnection(resultSet, preparedStatement, connection);
}
}
public int dedletePieceLabel(int userID,String str){
/*
*
* 根据用户名和选取标签进行删除
* */
public int dedletePieceLabel(String name,String str){
String label;
int num;
try {
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
String sql = "select searchHistory from user where userId=?";
label = runner.query(conn, sql, new BeanHandler<>(String.class),userID);
String sql = "select searchHistory from user where userName=?";
label = runner.query(conn, sql, new BeanHandler<>(String.class),name);
label=label.replace(str,"");
sql="UPDATE user SET searchHistory = ? WHERE userId= ?";
num = runner.update(conn,sql,label,userID);
sql="UPDATE user SET searchHistory = ? WHERE userName= ?";
num = runner.update(conn,sql,label,name);
} catch (SQLException e) {
throw new RuntimeException(e);
}
return num;
}
public String selectLabel(int userID){
/*
*
* 根据用户名返回搜索历史
* */
public String selectLabel(String name){
String label;
try {
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
String sql = "select searchHistory from user where userId=?";
label = runner.query(conn, sql, new BeanHandler<>(String.class),userID);
String sql = "select searchHistory from user where userName=?";
label = runner.query(conn, sql, new BeanHandler<>(String.class),name);
} catch (SQLException e) {
throw new RuntimeException(e);
@@ -145,14 +152,18 @@ public class UserDao {
return label;
}
public int dedleteAllLabel(int userID){
/*
*
* 根据用户名和选取标签进行删除
* */
public int dedleteAllLabel(String name){
String label="";
int num;
try {
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
String sql="UPDATE user SET searchHistory = ? WHERE userId= ?";
num = runner.update(conn,sql,label,userID);
String sql="UPDATE user SET searchHistory = ? WHERE userName= ?";
num = runner.update(conn,sql,label,name);
} catch (SQLException e) {
throw new RuntimeException(e);
}

24
src/com/hellogithub/dao/projectDao.java
View File

@@ -13,7 +13,11 @@ import java.util.List;
public class projectDao {
/**
* 按照期刊号查询
*
* @param num
*/
public List<projectEntity> retTerm(String num) {
List<projectEntity> projectEntityList;
try {
@@ -27,7 +31,11 @@ public class projectDao {
}
return projectEntityList;
}
/**
* 返回最新期刊数字
*
*
*/
public int latestNum() {
projectEntity projectEntity;
try {
@@ -41,7 +49,11 @@ public class projectDao {
}
return projectEntity.getPeriodicals();
}
/**
* 返回最所有项目总数
*
*
*/
public int countAll() {
int count;
try {
@@ -55,7 +67,11 @@ public class projectDao {
}
return count;
}
/**
* 按照分类检索项目
*
*
*/
public List<projectEntity> retCate(int num) {
List<projectEntity> projectEntityList;

19
src/com/hellogithub/service/UserService.java
View File

@@ -31,7 +31,20 @@ public class UserService {
public userEntity findByUserName(String userName) {
return userDao.findByUserName(userName);
}
public int dedletePieceLabel(int userID,String str){ return userDao.dedletePieceLabel(userID, str);}
public String selectLabel(int userID){return userDao.selectLabel(userID);}
public int dedleteAllLabel(int userID){return userDao.dedleteAllLabel(userID);}
/**
* 根据用户名和选取标签进行删除
* @param name
* @param str
* */
public int dedletePieceLabel(String name,String str){ return userDao.dedletePieceLabel(name, str);}
/**
* 根据用户名返回搜索历史
* @param name
* */
public String selectLabel(String name){return userDao.selectLabel(name);}
/**
* 根据用户名和选取标签进行删除
* @param name
* */
public int dedleteAllLabel(String name){return userDao.dedleteAllLabel(name);}
}

21
src/com/hellogithub/service/projectService.java
View File

@@ -8,9 +8,28 @@ import java.util.List;
public class projectService {
private projectDao projectDao=new projectDao();
/**
* 按照期刊号查询
*
* @param num
*/
public List<projectEntity> retTerm(String num){return projectDao.retTerm(num);}
/**
* 返回最新期刊数字
*
*
*/
public int latestNum() {return projectDao.latestNum();}
/**
* 返回最所有项目总数
*
*
*/
public int countAll() {return projectDao.countAll();}
/**
* 按照分类检索项目
*
*
*/
public List<projectEntity> retCate(int num){return projectDao.retCate(num);}
}

18
src/com/hellogithub/servlet/deleteAllLabelServlet.java
View File

@@ -6,6 +6,7 @@ import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import java.io.IOException;
import java.io.PrintWriter;
@@ -20,10 +21,23 @@ public class deleteAllLabelServlet extends HttpServlet {
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
resp.setCharacterEncoding("UTF-8");
resp.setContentType("text/html; charset=utf-8");
// 设置响应头允许ajax跨域访问
String curOrigin = req.getHeader("Origin");
resp.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin);
resp.setHeader("Access-Control-Allow-Credentials", "true");
resp.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD");
resp.setHeader("Access-Control-Max-Age", "3600");
resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
resp.setContentType("application/json;charset=UTF-8");
PrintWriter writer = resp.getWriter();
String id = req.getParameter("xxxxx");
int num = userService.dedleteAllLabel(Integer.parseInt(id));
HttpSession session = req.getSession();
String name = (String)session.getAttribute("username");
//返回处理行数，如果为零则代表处理零条结果
int num = userService.dedleteAllLabel(name);
if(num == 0 ){
setResultError("删除失败",writer);
}else{

19
src/com/hellogithub/servlet/deletelabelServlet.java
View File

@@ -6,6 +6,7 @@ import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import java.io.IOException;
import java.io.PrintWriter;
@@ -20,10 +21,24 @@ public class deletelabelServlet extends HttpServlet {
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
resp.setCharacterEncoding("UTF-8");
resp.setContentType("text/html; charset=utf-8");
// 设置响应头允许ajax跨域访问
String curOrigin = req.getHeader("Origin");
resp.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin);
resp.setHeader("Access-Control-Allow-Credentials", "true");
resp.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE, HEAD");
resp.setHeader("Access-Control-Max-Age", "3600");
resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
resp.setContentType("application/json;charset=UTF-8");
PrintWriter writer = resp.getWriter();
String id = req.getParameter("xxxxx");
HttpSession session = req.getSession();
String name = (String)session.getAttribute("username");
String str = req.getParameter("xxxxx");
int num = userService.dedletePieceLabel(Integer.parseInt(id),str);
int num = userService.dedletePieceLabel(name,str);
//返回处理行数，如果为零则代表处理零条结果
if(num == 0 ){
setResultError("删除失败",writer);
}else{

23
src/com/hellogithub/servlet/latestServlet.java
View File

@@ -11,6 +11,9 @@ import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
@WebServlet("/latest")
public class latestServlet extends HttpServlet {
private com.hellogithub.service.projectService projectService=new projectService();
@@ -36,10 +39,28 @@ public class latestServlet extends HttpServlet {
resp.setHeader("Access-Control-Max-Age", "3600");
resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
resp.setContentType("application/json;charset=UTF-8");
//返回最新期刊数字
PrintWriter writer = resp.getWriter();
String jsonString = JSONObject.toJSONString(projectService.latestNum());
setResultOK("success",writer);
writer.println(jsonString);
writer.close();
}
public void setResult(Integer code, String msg, PrintWriter writer) {
HashMap<String, Object> result = new HashMap<>();
result.put("code", code);
result.put("msg", msg);
String jsonString = JSONObject.toJSONString(result);
writer.println(jsonString);
writer.close();
}
public void setResultError(String msg, PrintWriter writer) {
setResult(500, msg, writer);
}
public void setResultOK(String msg, PrintWriter writer) {
setResult(200, msg, writer);
}
}

24
src/com/hellogithub/servlet/selectCateServlet.java
View File

@@ -10,6 +10,8 @@ import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
@WebServlet("/selectCate")
public class selectCateServlet extends HttpServlet {
private projectService projectService=new projectService();
@@ -35,11 +37,29 @@ public class selectCateServlet extends HttpServlet {
resp.setHeader("Access-Control-Max-Age", "3600");
resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
resp.setContentType("application/json;charset=UTF-8");
//按照分类检索
String num = req.getParameter("xxxxxxx");
PrintWriter writer = resp.getWriter();
String jsonString = JSONObject.toJSONString(projectService.retTerm(String.valueOf(num)));
String jsonString = JSONObject.toJSONString(projectService.retCate(Integer.valueOf(num)));
setResultOK("success",writer);
writer.println(jsonString);
writer.close();
}
public void setResult(Integer code, String msg, PrintWriter writer) {
HashMap<String, Object> result = new HashMap<>();
result.put("code", code);
result.put("msg", msg);
String jsonString = JSONObject.toJSONString(result);
writer.println(jsonString);
writer.close();
}
public void setResultError(String msg, PrintWriter writer) {
setResult(500, msg, writer);
}
public void setResultOK(String msg, PrintWriter writer) {
setResult(200, msg, writer);
}
}

22
src/com/hellogithub/servlet/selectTermServlet.java
View File

@@ -11,6 +11,8 @@ import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
@WebServlet("/selectTerm")
public class selectTermServlet extends HttpServlet {
private projectService projectService=new projectService();
@@ -36,11 +38,29 @@ public class selectTermServlet extends HttpServlet {
resp.setHeader("Access-Control-Max-Age", "3600");
resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
resp.setContentType("application/json;charset=UTF-8");
//按照分类返回期刊
String num = req.getParameter("xxxxxxx");
PrintWriter writer = resp.getWriter();
String jsonString = JSONObject.toJSONString(projectService.retTerm(num));
setResultOK("success",writer);
writer.println(jsonString);
writer.close();
}
public void setResult(Integer code, String msg, PrintWriter writer) {
HashMap<String, Object> result = new HashMap<>();
result.put("code", code);
result.put("msg", msg);
String jsonString = JSONObject.toJSONString(result);
writer.println(jsonString);
writer.close();
}
public void setResultError(String msg, PrintWriter writer) {
setResult(500, msg, writer);
}
public void setResultOK(String msg, PrintWriter writer) {
setResult(200, msg, writer);
}
}

7
src/com/hellogithub/servlet/selectUserLabelServlet.java
View File

@@ -29,11 +29,12 @@ public class selectUserLabelServlet extends HttpServlet {
resp.setHeader("Access-Control-Allow-Headers", "access-control-allow-origin, authority, content-type, version-info, X-Requested-With");
resp.setContentType("application/json;charset=UTF-8");
//返回所有的历史记录
PrintWriter writer = resp.getWriter();
String id = req.getParameter("xxxxx");
String jsonString = JSONObject.toJSONString(userService.selectLabel(Integer.parseInt(id)));
String name = req.getParameter("xxxxx");
String jsonString = JSONObject.toJSONString(userService.selectLabel(name));
writer.println(jsonString);
setResultOK("success",writer);
writer.close();
}