質問編集履歴
4
別エラーの発生のため、本文内容を変更
test
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@@ -1 +1 @@
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Lambda(java)
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Lambda(java)からRDS(PostgreSQL)にINSERTできない
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test
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--
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INSERT 用のメソッドがエラーにならず実行されることは確認できたのですが、以下のように、全てNULLの行が挿入されてしまいます。
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●テストデータ
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```json
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{
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"name": "Chris",
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"pass": "XmasParty",
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"age": 20
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}
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```
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●ソース
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```java
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{
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public class InsertRecord implements RequestHandler<Request, Response>{
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// 省略:DB接続部分
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public Response handleRequest(Request request, Context context) {
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Response response = new Response();
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try {
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System.out.println(request);
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String sql = "INSERT INTO test(name, pass, age) values(" + request.getName() + ", " + request.getPass() + ", " + request.getAge() + ")";
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conn = DriverManager.getConnection(url, user, pass);
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Statement stmt = conn.createStatement();
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int result = stmt.executeUpdate(sql);
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ResultSet resultSet = stmt.executeQuery("SELECT * FROM test WHERE name = " + request.getName());
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// フィールド一覧を取得
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List<String> fields = new ArrayList<String>();
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ResultSetMetaData rsmd = resultSet.getMetaData();
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for (int i = 1; i <= rsmd.getColumnCount(); i++) {
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fields.add(rsmd.getColumnName(i));
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}
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//結果の出力
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int rowCount = 0;
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while (resultSet.next()) {
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rowCount++;
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System.out.println("---------------------------------------------------");
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System.out.println("--- Rows:" + rowCount);
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System.out.println("---------------------------------------------------");
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//値は、「resultSet.getString(<フィールド名>)」で取得する。
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for (String field : fields) {
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response.setFields(field, resultSet.getString(field));
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}
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}
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stmt.close();
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conn.close();
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} catch(SQLException e) {
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e.printStackTrace();
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}
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return response;
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}
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}
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```
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上記のコードは各種Webページを参考にさせていただきながら記述したのですが、
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結果は次のようなエラーとなります。
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```Java
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START RequestId: 59f2199d-9072-11e8-8a69-5b2ce4631401 Version: $LATEST
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lambda.Request@1f28c152
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org.postgresql.util.PSQLException: ERROR: column "chris" does not exist
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Position: 42
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at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2103)
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at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1836)
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at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)
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at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:512)
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at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:374)
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at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:302)
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at lambda.InsertRecord.handleRequest(InsertRecord.java:66)
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at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
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at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
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at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
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at java.lang.reflect.Method.invoke(Method.java:498)
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at lambdainternal.EventHandlerLoader$PojoMethodRequestHandler.handleRequest(EventHandlerLoader.java:259)
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at lambdainternal.EventHandlerLoader$PojoHandlerAsStreamHandler.handleRequest(EventHandlerLoader.java:178)
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at lambdainternal.EventHandlerLoader$2.call(EventHandlerLoader.java:888)
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at lambdainternal.AWSLambda.startRuntime(AWSLambda.java:283)
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at lambdainternal.AWSLambda.<clinit>(AWSLambda.java:64)
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at java.lang.Class.forName0(Native Method)
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at java.lang.Class.forName(Class.java:348)
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at lambdainternal.LambdaRTEntry.main(LambdaRTEntry.java:94)
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END RequestId: 59f2199d-9072-11e8-8a69-5b2ce4631401
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REPORT RequestId: 59f2199d-9072-11e8-8a69-5b2ce4631401 Duration: 864.50 ms Billed Duration: 900 ms Memory Size: 512 MB Max Memory Used: 49 MB
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```
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-
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上記のエラーの解決方法をご教示いただけますでしょうか。
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また、オリジナルのPOJOクラスは以下となりますが、InsertRecordクラスの中に含まなければならない、などの制約はあるのでしょうか。
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```java
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public class Request {
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String name;
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String pass;
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int age;
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public String getName() {
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return name;
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}
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public String getPass() {
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return pass;
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}
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public String getAge() {
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return String.valueOf(age);
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}
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public void setName(String name) {
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this.name = name;
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}
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public void setPass(String pass) {
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this.pass = pass;
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}
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public void setAge(String age) {
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this.age = Integer.parseInt(age);
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}
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public
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public Request(String name, String pass, String age) {
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this.name = name;
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this.pass = pass;
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284
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285
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this.age = Integer.parseInt(age);
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286
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}
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conn = DriverManager.getConnection(url, user, pass);
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public Request() {
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}
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}
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```
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300
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以上です。
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303
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よろしくお願いします。
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追記
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--
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115
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-
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116
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-
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117
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-
JDBC 4.0 からは
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120
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121
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```java
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122
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-
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123
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Class.forName();
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-
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125
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-
```
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126
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-
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127
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-
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128
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-
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129
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-
の記述が不要となっていたことが分かったので、該当行をコメントアウトしたところ、
|
130
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-
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131
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-
エラーが以下のように変わりました。
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132
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-
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133
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-
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134
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-
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135
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```java
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136
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-
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137
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java.sql.SQLException: No suitable driver found for jdbc:postgresql://<DB Endpoint>:<PORT>/<DB Name>
|
138
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-
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139
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-
at java.sql.DriverManager.getConnection(DriverManager.java:689)
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140
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-
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141
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-
at java.sql.DriverManager.getConnection(DriverManager.java:247)
|
142
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-
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143
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at lambda.InsertRecord.connectionTest(InsertRecord.java:22)
|
144
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-
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145
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at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
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146
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-
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147
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at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
|
148
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-
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149
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-
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
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150
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-
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151
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at java.lang.reflect.Method.invoke(Method.java:498)
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152
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-
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153
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at lambdainternal.EventHandlerLoader$PojoMethodRequestHandler.handleRequest(EventHandlerLoader.java:259)
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154
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-
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155
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at lambdainternal.EventHandlerLoader$PojoHandlerAsStreamHandler.handleRequest(EventHandlerLoader.java:178)
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156
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-
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157
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at lambdainternal.EventHandlerLoader$2.call(EventHandlerLoader.java:888)
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158
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159
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at lambdainternal.AWSLambda.startRuntime(AWSLambda.java:286)
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-
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161
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at lambdainternal.AWSLambda.<clinit>(AWSLambda.java:64)
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162
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-
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163
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at java.lang.Class.forName0(Native Method)
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165
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at java.lang.Class.forName(Class.java:348)
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166
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167
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at lambdainternal.LambdaRTEntry.main(LambdaRTEntry.java:94)
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168
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-
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169
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```
|
3
Postgreのバージョン修正、SRE ver の修正
test
CHANGED
File without changes
|
test
CHANGED
@@ -8,9 +8,9 @@
|
|
8
8
|
|
9
9
|
eclipse version :Oxygen.3a Release (4.7.3a)
|
10
10
|
|
11
|
-
PostgreSQL :42.2.4.j
|
11
|
+
PostgreSQL :42.2.4.jar
|
12
12
|
|
13
|
-
|
13
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+
SRE System Library :JavaSE-1.8
|
14
14
|
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15
15
|
|
16
16
|
|
2
エラー内容の追記
test
CHANGED
File without changes
|
test
CHANGED
@@ -105,3 +105,65 @@
|
|
105
105
|
[パッケージ・エクスプローラー]→[ビルド・パス]→[外部アーカイブの追加]からPostgreのjarも追加済みです。
|
106
106
|
|
107
107
|
よろしくお願いします。
|
108
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+
|
109
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+
|
110
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+
|
111
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+
追記
|
112
|
+
|
113
|
+
--
|
114
|
+
|
115
|
+
|
116
|
+
|
117
|
+
JDBC 4.0 からは
|
118
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+
|
119
|
+
|
120
|
+
|
121
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+
```java
|
122
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+
|
123
|
+
Class.forName();
|
124
|
+
|
125
|
+
```
|
126
|
+
|
127
|
+
|
128
|
+
|
129
|
+
の記述が不要となっていたことが分かったので、該当行をコメントアウトしたところ、
|
130
|
+
|
131
|
+
エラーが以下のように変わりました。
|
132
|
+
|
133
|
+
|
134
|
+
|
135
|
+
```java
|
136
|
+
|
137
|
+
java.sql.SQLException: No suitable driver found for jdbc:postgresql://<DB Endpoint>:<PORT>/<DB Name>
|
138
|
+
|
139
|
+
at java.sql.DriverManager.getConnection(DriverManager.java:689)
|
140
|
+
|
141
|
+
at java.sql.DriverManager.getConnection(DriverManager.java:247)
|
142
|
+
|
143
|
+
at lambda.InsertRecord.connectionTest(InsertRecord.java:22)
|
144
|
+
|
145
|
+
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
|
146
|
+
|
147
|
+
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
|
148
|
+
|
149
|
+
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
|
150
|
+
|
151
|
+
at java.lang.reflect.Method.invoke(Method.java:498)
|
152
|
+
|
153
|
+
at lambdainternal.EventHandlerLoader$PojoMethodRequestHandler.handleRequest(EventHandlerLoader.java:259)
|
154
|
+
|
155
|
+
at lambdainternal.EventHandlerLoader$PojoHandlerAsStreamHandler.handleRequest(EventHandlerLoader.java:178)
|
156
|
+
|
157
|
+
at lambdainternal.EventHandlerLoader$2.call(EventHandlerLoader.java:888)
|
158
|
+
|
159
|
+
at lambdainternal.AWSLambda.startRuntime(AWSLambda.java:286)
|
160
|
+
|
161
|
+
at lambdainternal.AWSLambda.<clinit>(AWSLambda.java:64)
|
162
|
+
|
163
|
+
at java.lang.Class.forName0(Native Method)
|
164
|
+
|
165
|
+
at java.lang.Class.forName(Class.java:348)
|
166
|
+
|
167
|
+
at lambdainternal.LambdaRTEntry.main(LambdaRTEntry.java:94)
|
168
|
+
|
169
|
+
```
|
1
Postgreのバージョン修正、url の修正
test
CHANGED
File without changes
|
test
CHANGED
@@ -8,7 +8,7 @@
|
|
8
8
|
|
9
9
|
eclipse version :Oxygen.3a Release (4.7.3a)
|
10
10
|
|
11
|
-
PostgreSQL :42.2.4.jar
|
11
|
+
PostgreSQL :42.2.4.jre6.jar
|
12
12
|
|
13
13
|
Java :J2SE-1.5
|
14
14
|
|
@@ -76,7 +76,7 @@
|
|
76
76
|
|
77
77
|
Connection conn = null;
|
78
78
|
|
79
|
-
String url = "jdbc:postgre://<DB Endpoint>:<PORT>/<DB Name>";
|
79
|
+
String url = "jdbc:postgresql://<DB Endpoint>:<PORT>/<DB Name>";
|
80
80
|
|
81
81
|
String user = "<user name>";
|
82
82
|
|