我正在从事Java7开发,并且已将JDK7添加到 Java平台中,并已在项目属性中选择了它.
I'm getting into Java7 development and I've added JDK7 into Java Platforms and have selected it in the project properties.
但是当我编译时,我收到类似这样的消息:
But when I'm compiling, I get messages like:
warning: java/lang/Boolean.class(java/lang:Boolean.class): major version 51 is newer than 50, the highest major version supported by this compiler. It is recommended that the compiler be upgraded.和
javac: invalid target release: 1.7 /Applications/NetBeans/NetBeans 7.1.app/Contents/Resources/NetBeans/harness/suite.xml:184: The following error occurred while executing this line: /Applications/NetBeans/NetBeans 7.1.app/Contents/Resources/NetBeans/harness/common.xml:206: Compile failed; see the compiler error output for details.据我了解,Netbeans正在使用javac 1.6.如何更改为1.7?
So as far as I understand Netbeans is using javac 1.6. How can I change in to 1.7?
我正在编写NetBeans平台应用程序,并且在我设置的主应用程序属性中: Java平台 = JDK 1.7 .在该模块的属性"之一中,我设置了源级别 = 1.7 .
I'm writing a NetBeans Platform app and in main app Properties I've set: Java Platform = JDK 1.7. And in one of the module's Properties I've set Source level = 1.7.
- Mac OS 10.7.3
- NetBeans IDE 7.1(内部版本201112071828)
- openjdk 版本"1.7.0-内部"
- OpenJDK 运行时环境(内部版本1.7.0-internal-uko_2012_02_15_11_51-b00)
- OpenJDK 64位服务器VM(内部版本23.0-b15,混合模式)
- Mac OS 10.7.3
- NetBeans IDE 7.1 (Build 201112071828)
- openjdk version "1.7.0-internal"
- OpenJDK Runtime Environment (build 1.7.0-internal-uko_2012_02_15_11_51-b00)
- OpenJDK 64-Bit Server VM (build 23.0-b15, mixed mode)
suite.xml(此处的第二行是184)
suite.xml (184 is the second line here)
<target name="build" depends="-init,branding,release,-hide-excluded-modules" description="Build all modules in the suite."> <subant target="netbeans" buildpath="${modules.sorted}" inheritrefs="false" inheritall="false"> <property name="cluster.path.evaluated" value="${cluster.path.evaluated}"/> <!-- Just for speed of pre-7.0 projects --> </subant> </target>common.xml(此处的第二行是206)
common.xml (206 is the second line here)
<nb-javac srcdir="${src.dir}" destdir="${build.classes.dir}" debug="${buildpiler.debug}" debuglevel="${buildpiler.debuglevel}" encoding="UTF-8" deprecation="${buildpiler.deprecation}" optimize="${buildpiler.optimize}" source="${javac.source}" target="${javac.target}" includeantruntime="false"> <classpath refid="cp"/> <compilerarg line="${javacpilerargs}"/> <processorpath refid="processor.cp"/> </nb-javac>推荐答案
右键单击您的项目->项目属性
Right click on your project --> Project Properties
然后在Sources中将Source/Binary Format设置为JDK 7.
Then in Sources set Source/Binary Format to JDK 7.
有一个 NetBeans问题:
在J2SE项目中效果很好,Web项目特定的问题. 问题是将JDK 7.0参数fork ="false"传递给JDK 6.0 编译器.可执行文件需要fork ="true".
Works fine in J2SE project, Web project specific problem. The problem is that fork="false" the JDK 7.0 params are passed to JDK 6.0 compiler. The executable requires fork="true".
在build-iml.xml的293行中
On the line 293 of build-iml.xml the
<javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" executable="${platform.javac}" fork="${javac.fork}" includeantruntime="false" includes="@{includes}" source="${javac.source}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">应成为:
<javac debug="@{debug}" deprecation="${javac.deprecation}" destdir="@{destdir}" encoding="${source.encoding}" excludes="@{excludes}" executable="${platform.javac}" fork="yes" includeantruntime="false" includes="@{includes}" source="${javac.source}" srcdir="@{srcdir}" target="${javac.target}" tempdir="${java.io.tmpdir}">编辑2(如果第一个提示不起作用):
尝试在JDK7中运行Netbeans IDE.
Try to run Netbeans IDE in JDK7.
编辑Netbeans conf文件:
Edit Netbeans conf file :
Linux
Linux
〜/beans/7.0/etc/app.conf
~/beans/7.0/etc/app.conf
Mac Os X
Mac Os X
/Applications/NetBeans/NetBeans \ 7.1.app/Contents/Resources/NetBeans/harness/etc/app.conf
/Applications/NetBeans/NetBeans\ 7.1.app/Contents/Resources/NetBeans/harness/etc/app.conf
在jdkhome=行中添加jdk7路径.
Add the jdk7 path in the line jdkhome=.
或
使用:启动netbeans
Launch netbeans using :
netbeans --jdkhome/Java7/Home/dir
netbeans --jdkhome /Java7/Home/dir
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