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优化

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This commit is contained in:
landaiqing
2023-07-11 19:42:59 +08:00
parent f8bfa63a50
commit 5a78a5f7ea
13 changed files with 157 additions and 17 deletions
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2
src/com/hellogithub/dao/AdminDao.java
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@@ -308,7 +308,7 @@ public class AdminDao {
try {
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
String sql="UPDATE article SET isValid = ? WHERE id = ?";
String sql="UPDATE onefile SET isValid = ? WHERE id = ?";
num = runner.update(conn, sql, isvalid,id);
conn.close();
} catch (SQLException e) {

4
src/com/hellogithub/dao/UserDao.java
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@@ -200,7 +200,7 @@ public class UserDao {
*
* 返回用户总数
* */
public long queryUserCount(){
public userEntity queryUserCount(){
userEntity userEntity;
long num;
try {
@@ -214,7 +214,7 @@ public class UserDao {
throw new RuntimeException(e);
}
return num;
return userEntity;
}

2
src/com/hellogithub/dao/categoryDao.java
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@@ -86,7 +86,7 @@ public class categoryDao {
try {
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
String sql="delete from category where articleId = ?";
String sql="delete from category where categoryId = ?";
num = runner.update(conn,sql,id);
conn.close();
} catch (SQLException e) {

8
src/com/hellogithub/dao/fileDao.java
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@@ -21,7 +21,7 @@ public class fileDao {
try {
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
String sql="select * from onefile ";
String sql="select * from onefile where isValid = 1";
fileEntityList = runner.query(conn,sql,new BeanListHandler<>(fileEntity.class));
conn.close();
} catch (SQLException e) {
@@ -80,8 +80,8 @@ public class fileDao {
try {
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
String sql="update onefile set oneFileName = ? , language = ? ,description =?, userId=?, url=?, lookNum=?,Content=?,isValid=? where id =? ";
num = runner.update(conn,sql, oneFileName ,language ,description,userId, url, lookNum ,contextFile ,isValid,fileId);
String sql="update onefile set oneFileName = ? , language = ? ,description =?, userId=?, url=?, lookNum=?,isValid=? where id =? ";
num = runner.update(conn,sql, oneFileName ,language ,description,userId, url, lookNum ,isValid,fileId);
conn.close();
} catch (SQLException e) {
throw new RuntimeException(e);
@@ -110,7 +110,7 @@ public class fileDao {
try{
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
String sql = "INSERT INTO onefile(oneFileName,language,description,userId,url,lookNum,Content,isValid) VALUES(?,?,?,?,?,0,?,1);";
String sql = "INSERT INTO onefile(oneFileName,language,description,userId,url,lookNum,Content,isValid) VALUES(?,?,?,?,?,0,?,0);";
int bool = 0;
num = runner.update(conn, sql,oneFileName,language,description,userId,url,contextFile);
conn.close();

6
src/com/hellogithub/entity/projectCategoryEntity.java
View File

@@ -29,13 +29,13 @@ public class projectCategoryEntity {
this.projectId = projectId;
}
int num ;
long num ;
public int getNum() {
public long getNum() {
return num;
}
public void setNum(int num) {
public void setNum(long num) {
this.num = num;
}
String categoryName;

5
src/com/hellogithub/service/UserService.java
View File

@@ -62,7 +62,10 @@ public class UserService {
* @param name
* */
public int dedleteAllLabel(String name){return userDao.dedleteAllLabel(name);}
public long queryUserCount(){return userDao.queryUserCount();}
public long queryUserCount(){
userEntity userEntity = userDao.queryUserCount();
return userEntity.getNum();
}
/**
* 根据用户名返回贡献值

3
src/com/hellogithub/service/oneFileService.java
View File

@@ -52,8 +52,9 @@ public class oneFileService {
return fileDao.selectAllFile();
}
public int insertOneFile(int userId ,String oneFileName, String language,String description ,
public int insertOneFile(String username ,String oneFileName, String language,String description ,
String url,String contextFile){
int userId = userDao.selectUserByName(username).getUserId();
return fileDao.insertOneFile(userId,oneFileName,language,description,url,contextFile);
}
}

121
src/com/hellogithub/servlet/DownLoadServlet.java Normal file
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@@ -0,0 +1,121 @@
package com.hellogithub.servlet;
import com.alibaba.fastjson.JSONObject;
import com.hellogithub.service.projectService;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.UUID;
@WebServlet("/DownLoad")
public class DownLoadServlet extends HttpServlet {
private projectService projectService = new projectService();
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.reset();
response.setContentType("application/x-msdownload;charset=utf-8");
//得到要下载的文件名
String projectId = request.getParameter("id");
String address = projectService.selectProById(projectId).getFileAddress();
String[] liss = address.split("\\\\");
String fileName = liss[liss.length - 1];
System.out.println(fileName);
//本地需要进行转码，linux服务器使用就会出现下载乱码
//fileName = new String(fileName.getBytes("iso8859-1"),"UTF-8");
// System.out.print("转码后"+fileName);
//上传的文件都是保存在/WEB-INF/upload目录下的子目录当中
String fileSaveRootPath = this.getServletContext().getRealPath(File.separator+"WEB-INF"+File.separator+"upload").replace("\\out\\artifacts\\helloGithub_war_exploded\\WEB-INF\\upload","\\web\\projectFile");;
//通过文件名找出文件的所在目录
//String path = findFileSavePathByFileName(fileName,fileSaveRootPath);
// String path = "/WEB-INF/upload";
//得到要下载的文件
File file = new File(fileSaveRootPath + File.separator + fileName);
//File file = new File(fileName);
System.out.println(file);
System.out.print("\n");
// 浏览器请求响应转码防止乱码
response.setCharacterEncoding("UTF-8");
request.setCharacterEncoding("UTF-8");
//如果文件不存在
if (!file.exists()) {
request.setAttribute("message", "wrong");
request.getRequestDispatcher("/message.jsp").forward(request, response);
return;
}
//处理文件名
String realname = fileName.substring(fileName.indexOf("_") + 1);
// System.out.println(realname);
//设置响应头，控制浏览器下载该文件
response.setHeader("content-disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
//读取要下载的文件，保存到文件输入流
FileInputStream in = new FileInputStream(fileSaveRootPath + File.separator + fileName);
//创建输出流
OutputStream out = response.getOutputStream();
//创建缓冲区
byte buffer[] = new byte[1024];
int len = 100;
//循环将输入流中的内容读取到缓冲区当中
while ((len = in.read(buffer)) > 0) {
//输出缓冲区的内容到浏览器，实现文件下载
out.write(buffer, 0, len);
}
//关闭文件输入流
in.close();
//关闭输出流
out.close();
// setResultOK("下载成功",writer);
}
/**
* @param filename 要下载的文件名
* @param saveRootPath 上传文件保存的根目录，也就是/WEB-INF/upload目录
* @return 要下载的文件的存储目录
* @Method: findFileSavePathByFileName
* @Description: 通过文件名和存储上传文件根目录找出要下载的文件的所在路径
* @Anthor:
*/
public String findFileSavePathByFileName(String filename, String saveRootPath) {
// int hashcode = filename.hashCode();
// int dir1 = hashcode&0xf; //0--15
// int dir2 = (hashcode&0xf0)>>4; //0-15
//String dir = saveRootPath + "\\" + dir1 + "\\" + dir2; //upload\2\3 upload\3\5
String dir = saveRootPath;
File file = new File(dir);
if (!file.exists()) {
//创建目录
file.mkdirs();
}
return dir;
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
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);
}
}

4
src/com/hellogithub/servlet/insertFileByAdminServlet.java
View File

@@ -38,11 +38,11 @@ public class insertFileByAdminServlet 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");
//插入文件
String oneFileName=req.getParameter("oneFileName");
String language=req.getParameter("language");
String description=req.getParameter("description");
int userId= Integer.parseInt(req.getParameter("userId"));
String Content=req.getParameter("Content");
String url=req.getParameter("url");
@@ -53,7 +53,7 @@ public class insertFileByAdminServlet extends HttpServlet {
setResultError("用户未登录",writer);
}else{
String username=userEntity.getUserName();
int num = oneFileService.insertOneFile(userId,oneFileName,language,description,url,Content);
int num = oneFileService.insertOneFile(username,oneFileName,language,description,url,Content);
if(num == 0){
setResultError("添加失败",writer);
}else{

1
src/com/hellogithub/servlet/systemAdmin/AdminLoginServlet.java
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@@ -94,6 +94,7 @@ public class AdminLoginServlet extends HttpServlet {
public void setResult(Integer code, String msg, PrintWriter writer) {
HashMap<String, Object> result = new HashMap<>();
result.put("msg", msg);
result.put("code", code);
String jsonString = JSONObject.toJSONString(result);
writer.println(jsonString);
writer.close();

7
src/com/hellogithub/servlet/systemAdmin/retProjectByTimeServlet.java
View File

@@ -1,5 +1,6 @@
package com.hellogithub.servlet.systemAdmin;
import com.hellogithub.entity.adminEntity;
import com.hellogithub.service.projectService;
import javax.servlet.ServletException;
@@ -7,6 +8,7 @@ import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.io.PrintWriter;
@WebServlet("/retProjectByTime")
@@ -30,6 +32,11 @@ public class retProjectByTimeServlet 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");
HttpSession session = req.getSession();
adminEntity user = (adminEntity)session.getAttribute("admin");
if(user == null) {
return;
}
String str = projectService.retProjectByTime();
PrintWriter writer = resp.getWriter();
writer.println(str);

7
src/com/hellogithub/servlet/systemAdmin/retProjectNumByCategoryServlet.java
View File

@@ -1,5 +1,6 @@
package com.hellogithub.servlet.systemAdmin;
import com.hellogithub.entity.adminEntity;
import com.hellogithub.service.categoryService;
import javax.servlet.ServletException;
@@ -7,6 +8,7 @@ import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.io.PrintWriter;
@WebServlet("/retProjectNumByCategory")
@@ -30,6 +32,11 @@ public class retProjectNumByCategoryServlet 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");
HttpSession session = req.getSession();
adminEntity user = (adminEntity)session.getAttribute("admin");
if(user == null) {
return;
}
String str = categoryService.retProjectNumByCategory();
PrintWriter writer = resp.getWriter();
writer.println(str);

4
src/com/hellogithub/servlet/systemAdmin/updateFileByAdminServlet.java
View File

@@ -46,9 +46,9 @@ public class updateFileByAdminServlet extends HttpServlet {
String oneFileName=req.getParameter("oneFileName");
String language=req.getParameter("language");
String description =req.getParameter("description");
int isValid = Integer.parseInt(req.getParameter("isValid "));
int isValid = Integer.parseInt(req.getParameter("isValid"));
String url=req.getParameter("url");
String Content=req.getParameter("Content");
String Content="";
int bool = oneFileService.updateFileDetail(fileId,userId,lookNum,oneFileName,language,description,isValid,url,Content);
if(bool == 1){
setResultOk("更新成功",writer);