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JDBCTemPlate的增删改查

总结下最近项目用到的JDBCTemplate的增删改查用到的方法

1、update()方法【此方法主要用于新增插入一条记录、或者进行修改】

a、新增一条记录, 这里用到org.springframework.jdbc.core.JdbcTemplate包下封装的JdbcTemplate类

jdbctemplate.update(sql,?,?,?,?)

第一种语法：

public boolean insertOrderLog(Integer OrdId, String LogType, String Content, String UserId, String SalesId, Integer CurrentOrderStatus, String OperateTime) {
String sql = "insert into F_OD_OrderLog (OrdId,LogType,Content,UserId,SalesId,CurrentOrderStatus,OperateTime) values(?,?,?,?,?,?,?)";
Integer count = jdbcTemplate.update(sql, OrdId, LogType, Content, UserId, SalesId, CurrentOrderStatus, OperateTime);

第二种语法：
第二种可获得当前表插入的最新主键

 1             String sql = "insert into F_OD_CompanyContacts(IdCardPicFrontUrl,IdCardPicReverseUrl,CompId,FullName,LicenseNumber,Address,MobilePhone,Email) values(?,?,?,?,?,?,?,?)";
 2 //            i = jdbcTemplate.update(sql, IdCardPicFrontUrl, IdCardPicReverseUrl, compId, FullName, LicenseNumber, Address, MobilePhone, Email, 1);
 3             GeneratedKeyHolder keyHolder = new GeneratedKeyHolder();
 4             jdbcTemplate.update(new PreparedStatementCreator() {
 5                                             public PreparedStatement createPreparedStatement(Connection conn) throws SQLException {
 6                                                 int i = 0;
 7                                                 java.sql.PreparedStatement ps = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
 8                                                 ps.setObject(++i, IdCardPicFrontUrl);
 9                                                 ps.setObject(++i, IdCardPicReverseUrl);
10                                                 ps.setInt(++i, compId);
11                                                 ps.setString(++i, FullName);
12                                                 ps.setString(++i, LicenseNumber);
13                                                 ps.setString(++i, Address);
14                                                 ps.setString(++i, MobilePhone);
15                                                 ps.setString(++i, Email);
16                                                 return ps;
17                                     }
18                                 },
19                     keyHolder);
20             Integer FiId = keyHolder.getKey().intValue();

b、修改

 //更改数据
                switch (Ispoeple){
                    case 1:
                     //法人联系人相同
                     String sqq="update F_LYJ_SanWangNetLog set isIdCard=?,isMobilePhone=?,ispoeple=? where ordId=?";
                        result=  jdbcTemplate.update(sqq, map.get("isIdCard"), map.get("isMobilePhone"),Ispoeple ,ordId);
                        break;
                    case 2:
                        //法人联系人不相同
                        String sqp="update F_LYJ_SanWangNetLog set isIdCard=?,isMobilePhone=?,isConFullName=?,isConLicenseNumber=?,isConMobilePhone=?,ispoeple=?, where ordId=?";
                        result=  jdbcTemplate.update(sqp, map.get("isIdCard"), map.get("isMobilePhone"),map.get("isConFullName"),map.get("isConLicenseNumber"),map.get("isConMobilePhone"), Ispoeple,ordId);
                        break;

                }
                return result;

2、queryforObject()方法【此方法主要用于查询一条记录字段数据，或者一个count(*)聚合记录】

a、查询一条记录或者多个字段

 //查找当前法人,联系人主键
                    String sqq = " SELECT fcl.LegalId,fcc.id  FROM F_OD_OrderInfo fo LEFT JOIN F_OD_CompanyContacts fcc ON fo.FiId=fcc.id  LEFT JOIN 
" +
                            "                           F_OD_CompanyLegal fcl ON fo.LegalId=fcl.LegalId WHERE fo.`OrdId`=?";
                    Map map = jdbcTemplate.queryForObject(sqq, new Object[]{ordId}, new RowMapper<Map<String, String>>() {
                        @Override
                        public Map<String, String> mapRow(ResultSet resultSet, int i) throws SQLException {
                            HashMap<String, String> map = new HashMap<>();
                            map.put("LegalId", resultSet.getString("LegalId"));
                            map.put("id", resultSet.getString("id"));
                            return map;
                        }
                    });

b、查询记录数

            String sql="select count(*) from F_LYJ_SanWangNetLog where ordId=?";
            Integer count = jdbcTemplate.queryForObject(sql, new Object[]{ordId}, Integer.class);

3、query()方法【此方法主要用于多表联查，可查询多条list记录】

 1 SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 2             List<Map<String, String>> list = jdbcTemplate.query(sql, obj, (rs, rowNum) -> {
 3                 boolean flag = false;
 4                 Map<String, String> m = new HashMap<>();
 5                 m.put("ordNum", rs.getString("OrdNum"));
 6                 m.put("OrdId", rs.getString("OrdId"));
 7                 m.put("GoodsServiceName", rs.getString("ServiceName"));
 8                 m.put("relationId", rs.getString("RelationId"));
 9                 m.put("onlinePayMoney", rs.getString("OnlinePayMoney"));
10                 m.put("payment", rs.getString("Payment"));
11                 m.put("ordStatus", rs.getString("OrdStatus"));
12                 m.put("createTime", rs.getTimestamp("CreateTime") == null ? "" : simpleDateFormat.format(rs.getTimestamp("CreateTime")));
13                 m.put("salesName", rs.getString("SalesName"));
14                 m.put("compName", rs.getString("CompName"));
15                 m.put("EASCompanyName", rs.getString("EASCompanyName"));
16                 m.put("ContactNumber", rs.getString("Phone"));
17                 m.put("OrdKind", rs.getString("OrdKind"));
18                 m.put("OrdType", rs.getString("OrdType"));
19                 m.put("RenewedTime", rs.getString("RenewedTime"));
20                 m.put("ReletId", rs.getString("ReletId"));
21                 m.put("EasContractNum", rs.getString("EasContractNum"));
22                 if (null != rs.getString("RenewedTime")) {
23                     m.put("RenewedTimeStatus", "success");
24                     flag = true;
25                 } else {
26                     m.put("RenewedTimeStatus", "waring");
27                 }
28                 m.put("PaymentTime", rs.getString("PaymentTime"));
29                 if (null != rs.getString("PaymentTime")) {
30                     m.put("PaymentTimeStatus", "success");
31                     flag = true;
32                 } else {
33                     if (flag) {
34                         m.put("PaymentTimeStatus", "waring");
35                         flag = false;
36                     } else {
37                         m.put("PaymentTimeStatus", "");
38                     }
39                 }
40                 m.put("LetterTime", rs.getString("LetterTime"));
41                 if (null != rs.getString("LetterTime")) {
42                     m.put("LetterTimeStatus", "success");
43                 } else {
44                     if (flag) {
45                         m.put("LetterTimeStatus", "waring");
46                         flag = false;
47                     } else {
48                         m.put("LetterTimeStatus", "");
49                     }
50 
51                 }
52                 m.put("AoCransferTime", rs.getString("AoCransferTime"));
53                 if (null != rs.getString("AoCransferTime")) {
54                     m.put("AoCransferTimeStatus", "success");
55                 } else {
56                     if (flag) {
57                         m.put("AoCransferTimeStatus", "waring");
58                         flag = false;
59                     } else {
60                         m.put("AoCransferTimeStatus", "");
61                     }
62                 }
63                 m.put("SigintureTime", rs.getString("SigintureTime"));
64                 if (null != rs.getString("SigintureTime")) {
65                     m.put("SigintureTimeStatus", "success");
66                 } else {
67                     if (flag) {
68                         m.put("SigintureTimeStatus", "waring");
69                         flag = false;
70                     } else {
71                         m.put("SigintureTimeStatus", "");
72                     }
73                 }
74                 m.put("OurSigintureTime", rs.getString("OurSigintureTime"));
75                 if (null != rs.getString("OurSigintureTime")) {
76                     m.put("OurSigintureTimeStatus", "success");
77                 } else {
78                     if (flag) {
79                         m.put("OurSigintureTimeStatus", "waring");
80                         flag = false;
81                     } else {
82                         m.put("OurSigintureTimeStatus", "");
83                     }
84                 }
85                 m.put("HandoverTime", rs.getString("HandoverTime"));
86                 if (null != rs.getString("HandoverTime")) {
87                     m.put("HandoverTimeStatus", "success");
88                 } else {
89                     if (flag) {
90                         m.put("HandoverTimeStatus", "waring");
91                         flag = false;
92                     } else {
93                         m.put("HandoverTimeStatus", "");
94                     }
95                 }
96                 m.put("ComId", rs.getString("ComId"));
97                 return m;

4、查询中取数据库特殊时间字段，这里不能用getStrig 或者getdata（getdata不能取完整时间）

 1 Object[] obj = objList.toArray();
 2             SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 3 
 4             List<Map<String, String>> list = jdbcTemplate.query(sql, obj, (rs, rowNum) -> {
 5                 Map<String, String> m = new HashMap<>();     
 8                 m.put("RefoundOrderNumber", rs.getString("RefoundOrderNumber"));
12                 m.put("StartingTime", rs.getTimestamp("StartingTime") == null ? "" : simpleDateFormat.format(rs.getTimestamp("StartingTime")));
13                 m.put("ContinueTime", rs.getTimestamp("ContinueTime") == null ? "" : simpleDateFormat.format(rs.getTimestamp("ContinueTime")));
15                 m.put("salesName", rs.getString("SalesName"));
16                 m.put("HireContractNumber", rs.getString("HireContractNumber"));
17                 m.put("Initiator", rs.getString("Initiator"));
18                 m.put("reletReason", rs.getString("ReletReason"));
19                 m.put("compName", rs.getString("CompName"));
20                 m.put("EASCompanyName", rs.getString("EASCompanyName"));
21                 m.put("reletContractStatus", rs.getString("ReletContractStatus"));
26                 return m;

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原文地址：https://www.cnblogs.com/zrboke/p/11434841.html

JDBCTemPlate的增删改查

总结下最近项目用到的JDBCTemplate的增删改查用到的方法

1、update()方法 【此方法主要用于新增插入一条记录、或者进行修改】

2、queryforObject()方法 【此方法主要用于查询一条记录字段数据，或者一个count(*)聚合记录】

3、query()方法 【此方法主要用于多表联查，可查询多条list记录】

1、update()方法【此方法主要用于新增插入一条记录、或者进行修改】

2、queryforObject()方法【此方法主要用于查询一条记录字段数据，或者一个count(*)聚合记录】

3、query()方法【此方法主要用于多表联查，可查询多条list记录】