QueryServiceDAOImpl.java
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package com.java110.db.dao.impl;
import com.java110.core.base.dao.BaseServiceDao;
import com.java110.db.dao.IQueryServiceDAO;
import com.java110.dto.system.ServiceBusiness;
import com.java110.dto.system.ServiceSql;
import com.java110.utils.util.StringUtil;
import org.slf4j.Logger;
import com.java110.core.log.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.sql.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Created by wuxw on 2018/4/20.
*/
@Service("queryServiceDAOImpl")
@Transactional
public class QueryServiceDAOImpl extends BaseServiceDao implements IQueryServiceDAO {
private final static Logger logger = LoggerFactory.getLogger(QueryServiceDAOImpl.class);
/**
* 防止sql注入 改造成直接用prepareStatement 预处理sql
*
* @param sql
* @param params
* @return
*/
@Override
public List<Map<String, Object>> executeSql(String sql, Object[] params) {
return executeSql(sql, params, null);
}
/**
* 防止sql注入 改造成直接用prepareStatement 预处理sql
*
* @param sql
* @param params
* @return
*/
@Override
public List<Map<String, Object>> executeSql(String sql, Object[] params, List<String> columns) {
logger.debug("----【queryServiceDAOImpl.executeSql】入参 : " + sql + " params= " + params);
Connection conn = null;
ResultSet rs = null;
PreparedStatement ps = null;
List<Map<String, Object>> mapList = new ArrayList<Map<String, Object>>();
try {
conn = sqlSessionTemplate.getConnection();
ps = conn.prepareStatement(sql);
if (params != null) {
for (int i = 0; i < params.length; i++) {
ps.setObject(i + 1, params[i]);
}
}
rs = ps.executeQuery();
//精髓的地方就在这里，类ResultSet有getMetaData()会返回数据的列和对应的值的信息，然后我们将列名和对应的值作为map的键值存入map对象之中...
ResultSetMetaData rsmd = rs.getMetaData();
if (columns != null) {
for (int i = 0; i < rsmd.getColumnCount(); i++) {
columns.add(rsmd.getColumnLabel(i+1));
}
}
while (rs.next()) {
Map<String, Object> map = new HashMap<String, Object>();
for (int i = 0; i < rsmd.getColumnCount(); i++) {
String col_name = rsmd.getColumnLabel(i + 1);
Object col_value = rs.getObject(col_name);
if (col_value == null) {
col_value = "";
}
map.put(col_name, col_value);
}
mapList.add(map);
}
return mapList;
} catch (SQLException e) {
logger.error("执行sql异常：" + sql + params, e);
return null;
} finally {
try {
//conn.close();
if (ps != null) {
ps.close();
}
if (rs != null) {
rs.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
}
//return sqlSessionTemplate.selectList("queryServiceDAOImpl.executeSql",sql);
}
/**
* 防止sql注入 改造成直接用prepareStatement 预处理sql
*
* @param sql
* @param params
* @return
*/
public int updateSql(String sql, Object[] params) {
logger.debug("----【queryServiceDAOImpl.updateSql】入参 : " + sql + " params= " + params);
Connection conn = null;
PreparedStatement ps = null;
try {
conn = sqlSessionTemplate.getConnection();
ps = conn.prepareStatement(sql);
if (params != null) {
for (int i = 0; i < params.length; i++) {
ps.setObject(i + 1, params[i]);
}
}
return ps.executeUpdate();
//精髓的地方就在这里，类ResultSet有getMetaData()会返回数据的列和对应的值的信息，然后我们将列名和对应的值作为map的键值存入map对象之中...
} catch (SQLException e) {
logger.error("执行sql异常：" + sql + params, e);
return 0;
} finally {
try {
//conn.close();
ps.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
//return sqlSessionTemplate.update("queryServiceDAOImpl.updateSql",sql);
}
@Override
public String executeProc(Map<String, Object> paramsInfo) {
String paramsInfoStr = "";
for (String key : paramsInfo.keySet()) {
if ("procName".equals(key)) {
paramsInfoStr += (paramsInfo.get("procName") + "(");
} else {
if (StringUtil.isNullOrNone(paramsInfo.get(key))) {
paramsInfoStr += "'',";
} else {
paramsInfoStr += "'" + paramsInfo.get(key) + "',";
}
}
}
paramsInfo.put("paramsInfo", paramsInfoStr);
sqlSessionTemplate.selectOne("queryServiceDAOImpl.executeProc", paramsInfo);
return paramsInfo.get("resMsg") == null ? "" : paramsInfo.get("resMsg").toString();
}
@Override
public String updateProc(Map<String, Object> paramsInfo) {
String paramsInfoStr = "";
for (String key : paramsInfo.keySet()) {
if ("procName".equals(key)) {
paramsInfoStr += (paramsInfo.get("procName") + "(");
} else {
if (StringUtil.isNullOrNone(paramsInfo.get(key))) {
paramsInfoStr += "'',";
} else {
paramsInfoStr += "'" + paramsInfo.get(key) + "',";
}
}
}
paramsInfo.put("paramsInfo", paramsInfoStr);
sqlSessionTemplate.update("queryServiceDAOImpl.updateProc", paramsInfo);
return paramsInfo.get("resMsg") == null ? "" : paramsInfo.get("resMsg").toString();
}
/**
* 查询 ServiceSql
*
* @return
*/
@Override
public List<ServiceSql> qureyServiceSqlAll() {
return sqlSessionTemplate.selectList("queryServiceDAOImpl.qureyServiceSqlAll");
}
/**
* 查询服务业务信息
*
* @return
*/
public List<ServiceBusiness> qureyServiceBusiness() {
return sqlSessionTemplate.selectList("queryServiceDAOImpl.queryServiceBusiness");
}
}