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修改外键约束

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This commit is contained in:
cyk
2023-07-10 14:07:08 +08:00
parent 9b74eb84f6
commit cb33554bc2
5 changed files with 22 additions and 6 deletions
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8
src/com/hellogithub/dao/UserDao.java
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@@ -418,6 +418,14 @@ public class UserDao {
QueryRunner runner = new QueryRunner();
String sql="delete from user where userId = ?";
num = runner.update(conn,sql,id);
sql="update project set isValid = 0 where userId = ?";
runner.update(conn,sql,id);
sql="delete from support where userId = ?";
runner.update(conn,sql,id);
sql="delete from comment where userId = ?";
runner.update(conn,sql,id);
sql="update article set isValid = 0 where userId = ?";
runner.update(conn,sql,id);
} catch (SQLException e) {
throw new RuntimeException(e);
}

4
src/com/hellogithub/dao/commentDao.java
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@@ -128,7 +128,7 @@ public class commentDao {
try {
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
String sql="update project set userId = ? , projectId = ? , content = ? ,isUsed =?, commentTime=?, isValid=?,star=?,likeNum=?where commentId =? ";
String sql="update comment set userId = ? , projectId = ? , content = ? ,isUsed =?, commentTime=?, isValid=?,star=?,likeNum=?where commentId =? ";
num = runner.update(conn,sql,userId, projectId , content , isUsed, commentTime, isValid, star, likeNum ,commentId);
} catch (SQLException e) {
throw new RuntimeException(e);
@@ -142,7 +142,7 @@ public class commentDao {
try {
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
String sql="delete from project where commentId = ?";
String sql="delete from comment where commentId = ?";
num = runner.update(conn,sql,id);
} catch (SQLException e) {
throw new RuntimeException(e);

6
src/com/hellogithub/dao/projectDao.java
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@@ -369,10 +369,12 @@ public class projectDao {
try {
Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner();
runner.update(conn,"set foreign_key_checks = 0");
String sql="delete from project where projectId = ?";
num = runner.update(conn,sql,id);
runner.update(conn,"set foreign_key_checks = 1");
sql="delete from support where projectId = ?";
runner.update(conn,sql,id);
sql="delete from project_category where projectId = ?";
runner.update(conn,sql,id);
} catch (SQLException e) {
throw new RuntimeException(e);
}

9
src/com/hellogithub/service/projectService.java
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@@ -289,5 +289,12 @@ public class projectService {
{
return projectDao.updateProjectDetail( projectId , userId , projectName, projectUrl , projectIco , projectTitle , projectDescription , startNum, submitTime ,categoryId,isValid,fileAddress, periodicals, lookCount);
}
public int deleteProject(int id ){return projectDao.deleteProject(id);}
public int deleteProject(int id )
{
int userId = projectDao.selectProById(String.valueOf(id)).getUserId();
String userName= userDao.selectNameById(userId);
userEntity userEntity = userDao.selectUserByName(userName);
userDao.updateUserDetail(userEntity.getUserId(),userName,userEntity.getUserPassword(),userEntity.getCreatTime(),userEntity.getIsValid(),userEntity.getProjectNum()-1,userEntity.getSearchHistory(),userEntity.getContributionValue(),userEntity.getUserAvatar(),userEntity.getUserLevel());
return projectDao.deleteProject(id);
}
}

1
src/com/hellogithub/servlet/systemAdmin/deleteProjectServlet.java
View File

@@ -35,7 +35,6 @@ public class deleteProjectServlet extends HttpServlet {
String proId = req.getParameter("id");
PrintWriter writer = resp.getWriter();
int num = projectService.deleteProject(Integer.parseInt(proId));
if(num == 0)
{