myeclipse时出现了java.lang.OutOfMemoryError: Java heap space的错误

本文介绍了解决MyEclipse中出现的java.lang.OutOfMemoryError:Java heap space错误的方法。通过调整JRE设置中的DefaultVMArguments参数,将-Xms1024M和-Xmx1024M应用于所有项目。

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myeclipse时出现了java.lang.OutOfMemoryError: Java heap space的错误,查找后解决如下:
从Intalled JREs里修改;window->Preferences->Java->Installed JREs,选择当前的JRE,然后edit它;在新窗口里设置Default VM Arguments为 -Xms1024M -Xmx1024M即可;这个设置应该对所有的工程都有效。

2025-06-23 00:09:39.631 DEBUG 43184 --- [http-nio-8080-exec-6] o.s.web.servlet.DispatcherServlet : "ERROR" dispatch for POST "/error", parameters={} 2025-06-23 00:09:39.632 DEBUG 43184 --- [http-nio-8080-exec-7] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped to org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController#error(HttpServletRequest) 2025-06-23 00:09:39.632 ERROR 43184 --- [http-nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Handler dispatch failed; nested exception is java.lang.OutOfMemoryError: Java heap space] with root cause java.lang.OutOfMemoryError: Java heap space at com.sun.proxy.$Proxy152.getString(Unknown Source) ~[na:na] at org.apache.ibatis.type.StringTypeHandler.getNullableResult(StringTypeHandler.java:36) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.type.StringTypeHandler.getNullableResult(StringTypeHandler.java:26) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.type.BaseTypeHandler.getResult(BaseTypeHandler.java:86) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.applyAutomaticMappings(DefaultResultSetHandler.java:582) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:412) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForSimpleResultMap(DefaultResultSetHandler.java:362) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:333) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:306) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:202) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:66) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:80) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:65) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:333) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:158) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:110) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:90) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:154) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:147) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:142) ~[mybatis-3.5.13.jar!/:3.5.13] at jdk.internal.reflect.GeneratedMethodAccessor250.invoke(Unknown Source) ~[na:na] at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na] at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:426) ~[mybatis-spring-2.0.4.jar!/:2.0.4] at com.sun.proxy.$Proxy74.selectList(Unknown Source) ~[na:na] at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:223) ~[mybatis-spring-2.0.4.jar!/:2.0.4] at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:147) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:80) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:142) ~[mybatis-3.5.13.jar!/:3.5.13] at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86) ~[mybatis-3.5.13.jar!/:3.5.13] at com.sun.proxy.$Proxy86.getPat060List(Unknown Source) ~[na:na] at jdk.internal.reflect.GeneratedMethodAccessor1800.invoke(Unknown Source) ~[na:na]
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