公司旧框架tmd 导致tomcat访问不了 连接池被占用了 JdbcProvider
错误代码如下:try {
conn=JdbcProvider.getInstance().getConnection();
sm=conn.prepareStatement(sql);//办事指南
rs=sm.executeQuery();
while(isBSZLExsist && rs.next()){
Map<String,String> map=new HashMap<String, String>();
//map.put("id", rs.getString("id"));
map.put("title", rs.getString("title"));
map.put("docpuburl",rs.getString("docpuburl"));
map.put("docreltime", rs.getString("docreltime"));
list3.add(map);
}
System.out.println("办事指南=="+list3.size());
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
//这边有问题没有释放数据库资源
if(isExsist || isContentExsist){
try {
sm=conn.prepareStatement(sql1);//信箱
rs1=sm.executeQuery();
int count = 0;
while(isExsist && rs1.next()){
Map<String,String> map=new HashMap<String, String>();
map.put("id", rs1.getString("id"));
map.put("title", rs1.getString("title"));
map.put("docpuburl",rs1.getString("docpuburl"));
map.put("createdate", rs1.getString("createdate"));
list4.add(map);
count ++;
}
} catch (Exception e) {
e.printStackTrace();
}finally{
if(conn!=null){
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
正确代码如下：
try {
conn=JdbcProvider.getInstance().getConnection();
sm=conn.prepareStatement(sql);//办事指南
rs=sm.executeQuery();
while(isBSZLExsist && rs.next()){
Map<String,String> map=new HashMap<String, String>();
//map.put("id", rs.getString("id"));
map.put("title", rs.getString("title"));
map.put("docpuburl",rs.getString("docpuburl"));
map.put("docreltime", rs.getString("docreltime"));
list3.add(map);
}
System.out.println("办事指南=="+list3.size());
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}finally{//正确代码
if(conn!=null){//正确代码
try {//正确代码
conn.close();//正确代码
} catch (SQLException e) {//正确代码
e.printStackTrace();//正确代码
}//正确代码
}
}
if(isExsist || isContentExsist){
try {
conn=JdbcProvider.getInstance().getConnection();//正确代码
sm=conn.prepareStatement(sql1);//信箱
rs1=sm.executeQuery();
int count = 0;
while(isExsist && rs1.next()){
Map<String,String> map=new HashMap<String, String>();
map.put("id", rs1.getString("id"));
map.put("title", rs1.getString("title"));
map.put("docpuburl",rs1.getString("docpuburl"));
map.put("createdate", rs1.getString("createdate"));
list4.add(map);
count ++;
}
} catch (Exception e) {
e.printStackTrace();
}finally{
if(conn!=null){
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
总之 用完数据库资源 一定要释放 否则 旧框架就访问不了，切记
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