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修改随机数,projectDao增加isvalid判断条件

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This commit is contained in:
cyk
2023-07-04 10:08:24 +08:00
parent 73b55dc159
commit e8910bf623
2 changed files with 15 additions and 14 deletions
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24
src/com/hellogithub/dao/projectDao.java
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@@ -24,7 +24,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "select * from project where periodicals = ? ORDER BY categoryId"; String sql = "select * from project where periodicals = ? and isValid = 1ORDER BY categoryId";
projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class), num); projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class), num);
conn.close(); conn.close();
} catch (SQLException e) { } catch (SQLException e) {
@@ -42,7 +42,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "select * from project Order BY periodicals DESC limit 1"; String sql = "select * from project where isValid = 1 Order BY periodicals DESC limit 1";
projectEntity = runner.query(conn, sql, new BeanHandler<>(projectEntity.class)); projectEntity = runner.query(conn, sql, new BeanHandler<>(projectEntity.class));
conn.close(); conn.close();
} catch (SQLException e) { } catch (SQLException e) {
@@ -61,7 +61,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "select count(*) as num from project"; String sql = "select count(*) as num from project where isValid = 1";
p = runner.query(conn, sql, new BeanHandler<>(projectEntity.class)); p = runner.query(conn, sql, new BeanHandler<>(projectEntity.class));
count = p.getNum(); count = p.getNum();
conn.close(); conn.close();
@@ -81,7 +81,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "select * from project where categoryId = ?"; String sql = "select * from project where categoryId = ? and isValid = 1";
projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class), num); projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class), num);
conn.close(); conn.close();
} catch (SQLException e) { } catch (SQLException e) {
@@ -94,7 +94,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "select * from project;"; String sql = "select * from project where isValid = 1 ";
projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class)); projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class));
conn.close(); conn.close();
} catch (SQLException e) { } catch (SQLException e) {
@@ -107,7 +107,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "select * from project where projectId in (select projectId from project_category where categoryId in(select categoryId from category where categoryName = ?))"; String sql = "select * from project where isValid = 1 and projectId in (select projectId from project_category where categoryId in(select categoryId from category where categoryName = ?)) ";
projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class),name); projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class),name);
conn.close(); conn.close();
} catch (SQLException e) { } catch (SQLException e) {
@@ -121,7 +121,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "select * from project where projectId in (select projectId from project_category where categoryId in(select categoryId from category where categoryName = ?)) order by lookCount desc"; String sql = "select * from project where isValid = 1 and projectId in (select projectId from project_category where categoryId in(select categoryId from category where categoryName = ?)) order by lookCount desc";
projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class),name); projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class),name);
conn.close(); conn.close();
} catch (SQLException e) { } catch (SQLException e) {
@@ -134,7 +134,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "select * from project order by lookCount desc"; String sql = "select * from project where isValid = 1 order by lookCount desc";
projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class)); projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class));
conn.close(); conn.close();
} catch (SQLException e) { } catch (SQLException e) {
@@ -148,7 +148,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "SELECT * FROM project WHERE projectName LIKE %?%"; String sql = "SELECT * FROM project WHERE isValid = 1 and projectName LIKE %?%";
projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class), str); projectEntityList = runner.query(conn, sql, new BeanListHandler<>(projectEntity.class), str);
conn.close(); conn.close();
} catch (SQLException e) { } catch (SQLException e) {
@@ -180,7 +180,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "select * from project where projectId = ?"; String sql = "select * from project where isValid = 1 and projectId = ?";
projectEntity = runner.query(conn, sql, new BeanHandler<>(projectEntity.class),id); projectEntity = runner.query(conn, sql, new BeanHandler<>(projectEntity.class),id);
conn.close(); conn.close();
} catch (SQLException e) { } catch (SQLException e) {
@@ -197,7 +197,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "UPDATE project SET lookcount = lookcount+1 WHERE projectId= ?"; String sql = "UPDATE project SET lookcount = lookcount+1 WHERE isValid = 1 and projectId= ? ";
num = runner.update(conn, sql,id); num = runner.update(conn, sql,id);
conn.close(); conn.close();
} catch (SQLException e) { } catch (SQLException e) {
@@ -229,7 +229,7 @@ public class projectDao {
try { try {
Connection conn = JdbcUtils.getConnection(); Connection conn = JdbcUtils.getConnection();
QueryRunner runner = new QueryRunner(); QueryRunner runner = new QueryRunner();
String sql = "select * from project Order By ProjectId DESC limit 1"; String sql = "select * from project where isValid = 1 Order By ProjectId DESC limit 1";
projectEntity = runner.query(conn, sql,new BeanHandler<>(projectEntity.class)); projectEntity = runner.query(conn, sql,new BeanHandler<>(projectEntity.class));
num = projectEntity.getProjectId(); num = projectEntity.getProjectId();
conn.close(); conn.close();

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

@@ -158,12 +158,13 @@ public class projectService {
} }
public List<projectEntity> randomSelect(){ public List<projectEntity> randomSelect(){
List<projectEntity> projectEntityList = null; List<projectEntity> projectEntityList = new ArrayList<>();
long t = System.currentTimeMillis(); long t = System.currentTimeMillis();
Random random = new Random(t); Random random = new Random(t);
List<projectEntity> projectEntityList1 = projectDao.retLatestProject();
for(int i=0;i<5;i++) for(int i=0;i<5;i++)
{ {
projectEntity projectEntity = projectDao.selectProById(String.valueOf(random.nextInt(projectDao.retMaxProId()))); projectEntity projectEntity =projectEntityList1.get(random.nextInt(projectEntityList1.size()));
projectEntityList.add(projectEntity); projectEntityList.add(projectEntity);
} }
return projectEntityList; return projectEntityList;